18997154

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{239}}^1\times {\mathrm{3613}}^1$

素因数の和:3865

約数の個数: 16

約数和(自身を含む): 31224960

約数和(自身を除く): 12227806

約数列:

[1, 2, 11, 22, 239, 478, 2629, 3613, 5258, 7226, 39743, 79486, 863507, 1727014, 9498577, 18997154]

約数ペア:

[(1, 18997154), (2, 9498577), (11, 1727014), (22, 863507), (239, 79486), (478, 39743), (2629, 7226), (3613, 5258)]