21000969840

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{2822711}}^1$

素因数の和:2822758

約数の個数: 80

約数和(自身を含む): 67203127296

約数和(自身を除く): 46202157456

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 40, 48, 60, 62, 80, 93, 120, 124, 155, 186, 240, 248, 310, 372, 465, 496, 620, 744, 930, 1240, 1488, 1860, 2480, 3720, 7440, 2822711, 5645422, 8468133, 11290844, 14113555, 16936266, 22581688, 28227110, 33872532, 42340665, 45163376, 56454220, 67745064, 84681330, 87504041, 112908440, 135490128, 169362660, 175008082, 225816880, 262512123, 338725320, 350016164, 437520205, 525024246, 677450640, 700032328, 875040410, 1050048492, 1312560615, 1400064656, 1750080820, 2100096984, 2625121230, 3500161640, 4200193968, 5250242460, 7000323280, 10500484920, 21000969840]

約数ペア:

[(1, 21000969840), (2, 10500484920), (3, 7000323280), (4, 5250242460), (5, 4200193968), (6, 3500161640), (8, 2625121230), (10, 2100096984), (12, 1750080820), (15, 1400064656), (16, 1312560615), (20, 1050048492), (24, 875040410), (30, 700032328), (31, 677450640), (40, 525024246), (48, 437520205), (60, 350016164), (62, 338725320), (80, 262512123), (93, 225816880), (120, 175008082), (124, 169362660), (155, 135490128), (186, 112908440), (240, 87504041), (248, 84681330), (310, 67745064), (372, 56454220), (465, 45163376), (496, 42340665), (620, 33872532), (744, 28227110), (930, 22581688), (1240, 16936266), (1488, 14113555), (1860, 11290844), (2480, 8468133), (3720, 5645422), (7440, 2822711)]