About the Number

21018715900

21018715899 ← → 21018715901

2進数表記:10011100100110100000010011011111100

漢数字表記:二百十億千八百七十一万五千九百

素因数分解:

2 2 × 5 2 × 7 1 × 13 2 × 127 1 × 1399 1

素因数の和:1573
約数の個数: 216
約数和(自身を含む): 56929689600
約数和(自身を除く): 35910973700

約数列:
[1, 2, 4, 5, 7, 10, 13, 14, 20, 25, 26, 28, 35, 50, 52, 65, 70, 91, 100, 127, 130, 140, 169, 175, 182, 254, 260, 325, 338, 350, 364, 455, 508, 635, 650, 676, 700, 845, 889, 910, 1183, 1270, 1300, 1399, 1651, 1690, 1778, 1820, 2275, 2366, 2540, 2798, 3175, 3302, 3380, 3556, 4225, 4445, 4550, 4732, 5596, 5915, 6350, 6604, 6995, 8255, 8450, 8890, 9100, 9793, 11557, 11830, 12700, 13990, 16510, 16900, 17780, 18187, 19586, 21463, 22225, 23114, 23660, 27980, 29575, 33020, 34975, 36374, 39172, 41275, 42926, 44450, 46228, 48965, 57785, 59150, 69950, 72748, 82550, 85852, 88900, 90935, 97930, 107315, 115570, 118300, 127309, 139900, 150241, 165100, 177673, 181870, 195860, 214630, 231140, 236431, 244825, 254618, 288925, 300482, 355346, 363740, 429260, 454675, 472862, 489650, 509236, 536575, 577850, 600964, 636545, 710692, 751205, 888365, 909350, 945724, 979300, 1073150, 1155700, 1182155, 1243711, 1273090, 1502410, 1655017, 1776730, 1818700, 2146300, 2309749, 2364310, 2487422, 2546180, 3004820, 3182725, 3310034, 3553460, 3756025, 4441825, 4619498, 4728620, 4974844, 5910775, 6218555, 6365450, 6620068, 7512050, 8275085, 8883650, 9238996, 11548745, 11821550, 12437110, 12730900, 15024100, 16168243, 16550170, 17767300, 23097490, 23643100, 24874220, 30026737, 31092775, 32336486, 33100340, 41375425, 46194980, 57743725, 60053474, 62185550, 64672972, 80841215, 82750850, 115487450, 120106948, 124371100, 150133685, 161682430, 165501700, 210187159, 230974900, 300267370, 323364860, 404206075, 420374318, 600534740, 750668425, 808412150, 840748636, 1050935795, 1501336850, 1616824300, 2101871590, 3002673700, 4203743180, 5254678975, 10509357950, 21018715900]

約数ペア:
[(1, 21018715900), (2, 10509357950), (4, 5254678975), (5, 4203743180), (7, 3002673700), (10, 2101871590), (13, 1616824300), (14, 1501336850), (20, 1050935795), (25, 840748636), (26, 808412150), (28, 750668425), (35, 600534740), (50, 420374318), (52, 404206075), (65, 323364860), (70, 300267370), (91, 230974900), (100, 210187159), (127, 165501700), (130, 161682430), (140, 150133685), (169, 124371100), (175, 120106948), (182, 115487450), (254, 82750850), (260, 80841215), (325, 64672972), (338, 62185550), (350, 60053474), (364, 57743725), (455, 46194980), (508, 41375425), (635, 33100340), (650, 32336486), (676, 31092775), (700, 30026737), (845, 24874220), (889, 23643100), (910, 23097490), (1183, 17767300), (1270, 16550170), (1300, 16168243), (1399, 15024100), (1651, 12730900), (1690, 12437110), (1778, 11821550), (1820, 11548745), (2275, 9238996), (2366, 8883650), (2540, 8275085), (2798, 7512050), (3175, 6620068), (3302, 6365450), (3380, 6218555), (3556, 5910775), (4225, 4974844), (4445, 4728620), (4550, 4619498), (4732, 4441825), (5596, 3756025), (5915, 3553460), (6350, 3310034), (6604, 3182725), (6995, 3004820), (8255, 2546180), (8450, 2487422), (8890, 2364310), (9100, 2309749), (9793, 2146300), (11557, 1818700), (11830, 1776730), (12700, 1655017), (13990, 1502410), (16510, 1273090), (16900, 1243711), (17780, 1182155), (18187, 1155700), (19586, 1073150), (21463, 979300), (22225, 945724), (23114, 909350), (23660, 888365), (27980, 751205), (29575, 710692), (33020, 636545), (34975, 600964), (36374, 577850), (39172, 536575), (41275, 509236), (42926, 489650), (44450, 472862), (46228, 454675), (48965, 429260), (57785, 363740), (59150, 355346), (69950, 300482), (72748, 288925), (82550, 254618), (85852, 244825), (88900, 236431), (90935, 231140), (97930, 214630), (107315, 195860), (115570, 181870), (118300, 177673), (127309, 165100), (139900, 150241)]

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