20478484

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{3613}}^1$

素因数の和:3739

約数の個数: 24

約数和(自身を含む): 38958920

約数和(自身を除く): 18480436

約数列:

[1, 2, 4, 13, 26, 52, 109, 218, 436, 1417, 2834, 3613, 5668, 7226, 14452, 46969, 93938, 187876, 393817, 787634, 1575268, 5119621, 10239242, 20478484]

約数ペア:

[(1, 20478484), (2, 10239242), (4, 5119621), (13, 1575268), (26, 787634), (52, 393817), (109, 187876), (218, 93938), (436, 46969), (1417, 14452), (2834, 7226), (3613, 5668)]