21765472

素因数分解:

$2^5\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{593}}^1$

素因数の和:671

約数の個数: 48

約数和(自身を含む): 45505152

約数和(自身を除く): 23739680

約数列:

[1, 2, 4, 8, 16, 31, 32, 37, 62, 74, 124, 148, 248, 296, 496, 592, 593, 992, 1147, 1184, 1186, 2294, 2372, 4588, 4744, 9176, 9488, 18352, 18383, 18976, 21941, 36704, 36766, 43882, 73532, 87764, 147064, 175528, 294128, 351056, 588256, 680171, 702112, 1360342, 2720684, 5441368, 10882736, 21765472]

約数ペア:

[(1, 21765472), (2, 10882736), (4, 5441368), (8, 2720684), (16, 1360342), (31, 702112), (32, 680171), (37, 588256), (62, 351056), (74, 294128), (124, 175528), (148, 147064), (248, 87764), (296, 73532), (496, 43882), (592, 36766), (593, 36704), (992, 21941), (1147, 18976), (1184, 18383), (1186, 18352), (2294, 9488), (2372, 9176), (4588, 4744)]