18680404

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{1621}}^1$

素因数の和:1735

約数の個数: 24

約数和(自身を含む): 33971168

約数和(自身を除く): 15290764

約数列:

[1, 2, 4, 43, 67, 86, 134, 172, 268, 1621, 2881, 3242, 5762, 6484, 11524, 69703, 108607, 139406, 217214, 278812, 434428, 4670101, 9340202, 18680404]

約数ペア:

[(1, 18680404), (2, 9340202), (4, 4670101), (43, 434428), (67, 278812), (86, 217214), (134, 139406), (172, 108607), (268, 69703), (1621, 11524), (2881, 6484), (3242, 5762)]