21275800

素因数分解:

$2^3\times 5^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{167}}^1$

素因数の和:210

約数の個数: 144

約数和(自身を含む): 62339760

約数和(自身を除く): 41063960

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 25, 26, 28, 35, 40, 49, 50, 52, 56, 65, 70, 91, 98, 100, 104, 130, 140, 167, 175, 182, 196, 200, 245, 260, 280, 325, 334, 350, 364, 392, 455, 490, 520, 637, 650, 668, 700, 728, 835, 910, 980, 1169, 1225, 1274, 1300, 1336, 1400, 1670, 1820, 1960, 2171, 2275, 2338, 2450, 2548, 2600, 3185, 3340, 3640, 4175, 4342, 4550, 4676, 4900, 5096, 5845, 6370, 6680, 8183, 8350, 8684, 9100, 9352, 9800, 10855, 11690, 12740, 15197, 15925, 16366, 16700, 17368, 18200, 21710, 23380, 25480, 29225, 30394, 31850, 32732, 33400, 40915, 43420, 46760, 54275, 58450, 60788, 63700, 65464, 75985, 81830, 86840, 106379, 108550, 116900, 121576, 127400, 151970, 163660, 204575, 212758, 217100, 233800, 303940, 327320, 379925, 409150, 425516, 434200, 531895, 607880, 759850, 818300, 851032, 1063790, 1519700, 1636600, 2127580, 2659475, 3039400, 4255160, 5318950, 10637900, 21275800]

約数ペア:

[(1, 21275800), (2, 10637900), (4, 5318950), (5, 4255160), (7, 3039400), (8, 2659475), (10, 2127580), (13, 1636600), (14, 1519700), (20, 1063790), (25, 851032), (26, 818300), (28, 759850), (35, 607880), (40, 531895), (49, 434200), (50, 425516), (52, 409150), (56, 379925), (65, 327320), (70, 303940), (91, 233800), (98, 217100), (100, 212758), (104, 204575), (130, 163660), (140, 151970), (167, 127400), (175, 121576), (182, 116900), (196, 108550), (200, 106379), (245, 86840), (260, 81830), (280, 75985), (325, 65464), (334, 63700), (350, 60788), (364, 58450), (392, 54275), (455, 46760), (490, 43420), (520, 40915), (637, 33400), (650, 32732), (668, 31850), (700, 30394), (728, 29225), (835, 25480), (910, 23380), (980, 21710), (1169, 18200), (1225, 17368), (1274, 16700), (1300, 16366), (1336, 15925), (1400, 15197), (1670, 12740), (1820, 11690), (1960, 10855), (2171, 9800), (2275, 9352), (2338, 9100), (2450, 8684), (2548, 8350), (2600, 8183), (3185, 6680), (3340, 6370), (3640, 5845), (4175, 5096), (4342, 4900), (4550, 4676)]