21718408

素因数分解:

$2^3\times {\mathrm{37}}^1\times {\mathrm{239}}^1\times {\mathrm{307}}^1$

素因数の和:589

約数の個数: 32

約数和(自身を含む): 42134400

約数和(自身を除く): 20415992

約数列:

[1, 2, 4, 8, 37, 74, 148, 239, 296, 307, 478, 614, 956, 1228, 1912, 2456, 8843, 11359, 17686, 22718, 35372, 45436, 70744, 73373, 90872, 146746, 293492, 586984, 2714801, 5429602, 10859204, 21718408]

約数ペア:

[(1, 21718408), (2, 10859204), (4, 5429602), (8, 2714801), (37, 586984), (74, 293492), (148, 146746), (239, 90872), (296, 73373), (307, 70744), (478, 45436), (614, 35372), (956, 22718), (1228, 17686), (1912, 11359), (2456, 8843)]