20691312

素因数分解:

$2^4\times 3^1\times {\mathrm{17}}^1\times {\mathrm{25357}}^1$

素因数の和:25385

約数の個数: 40

約数和(自身を含む): 56599056

約数和(自身を除く): 35907744

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 17, 24, 34, 48, 51, 68, 102, 136, 204, 272, 408, 816, 25357, 50714, 76071, 101428, 152142, 202856, 304284, 405712, 431069, 608568, 862138, 1217136, 1293207, 1724276, 2586414, 3448552, 5172828, 6897104, 10345656, 20691312]

約数ペア:

[(1, 20691312), (2, 10345656), (3, 6897104), (4, 5172828), (6, 3448552), (8, 2586414), (12, 1724276), (16, 1293207), (17, 1217136), (24, 862138), (34, 608568), (48, 431069), (51, 405712), (68, 304284), (102, 202856), (136, 152142), (204, 101428), (272, 76071), (408, 50714), (816, 25357)]