21000895440

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{403243}}^1$

素因数の和:403297

約数の個数: 160

約数和(自身を含む): 76803465216

約数和(自身を除く): 55802569776

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 31, 35, 40, 42, 48, 56, 60, 62, 70, 80, 84, 93, 105, 112, 120, 124, 140, 155, 168, 186, 210, 217, 240, 248, 280, 310, 336, 372, 420, 434, 465, 496, 560, 620, 651, 744, 840, 868, 930, 1085, 1240, 1302, 1488, 1680, 1736, 1860, 2170, 2480, 2604, 3255, 3472, 3720, 4340, 5208, 6510, 7440, 8680, 10416, 13020, 17360, 26040, 52080, 403243, 806486, 1209729, 1612972, 2016215, 2419458, 2822701, 3225944, 4032430, 4838916, 5645402, 6048645, 6451888, 8064860, 8468103, 9677832, 11290804, 12097290, 12500533, 14113505, 16129720, 16936206, 19355664, 22581608, 24194580, 25001066, 28227010, 32259440, 33872412, 37501599, 42340515, 45163216, 48389160, 50002132, 56454020, 62502665, 67744824, 75003198, 84681030, 87503731, 96778320, 100004264, 112908040, 125005330, 135489648, 150006396, 169362060, 175007462, 187507995, 200008528, 225816080, 250010660, 262511193, 300012792, 338724120, 350014924, 375015990, 437518655, 500021320, 525022386, 600025584, 677448240, 700029848, 750031980, 875037310, 1000042640, 1050044772, 1312555965, 1400059696, 1500063960, 1750074620, 2100089544, 2625111930, 3000127920, 3500149240, 4200179088, 5250223860, 7000298480, 10500447720, 21000895440]

約数ペア:

[(1, 21000895440), (2, 10500447720), (3, 7000298480), (4, 5250223860), (5, 4200179088), (6, 3500149240), (7, 3000127920), (8, 2625111930), (10, 2100089544), (12, 1750074620), (14, 1500063960), (15, 1400059696), (16, 1312555965), (20, 1050044772), (21, 1000042640), (24, 875037310), (28, 750031980), (30, 700029848), (31, 677448240), (35, 600025584), (40, 525022386), (42, 500021320), (48, 437518655), (56, 375015990), (60, 350014924), (62, 338724120), (70, 300012792), (80, 262511193), (84, 250010660), (93, 225816080), (105, 200008528), (112, 187507995), (120, 175007462), (124, 169362060), (140, 150006396), (155, 135489648), (168, 125005330), (186, 112908040), (210, 100004264), (217, 96778320), (240, 87503731), (248, 84681030), (280, 75003198), (310, 67744824), (336, 62502665), (372, 56454020), (420, 50002132), (434, 48389160), (465, 45163216), (496, 42340515), (560, 37501599), (620, 33872412), (651, 32259440), (744, 28227010), (840, 25001066), (868, 24194580), (930, 22581608), (1085, 19355664), (1240, 16936206), (1302, 16129720), (1488, 14113505), (1680, 12500533), (1736, 12097290), (1860, 11290804), (2170, 9677832), (2480, 8468103), (2604, 8064860), (3255, 6451888), (3472, 6048645), (3720, 5645402), (4340, 4838916), (5208, 4032430), (6510, 3225944), (7440, 2822701), (8680, 2419458), (10416, 2016215), (13020, 1612972), (17360, 1209729), (26040, 806486), (52080, 403243)]