21105174

素因数分解:

$2^1\times 3^1\times {\mathrm{43}}^1\times {\mathrm{179}}^1\times {\mathrm{457}}^1$

素因数の和:684

約数の個数: 32

約数和(自身を含む): 43528320

約数和(自身を除く): 22423146

約数列:

[1, 2, 3, 6, 43, 86, 129, 179, 258, 358, 457, 537, 914, 1074, 1371, 2742, 7697, 15394, 19651, 23091, 39302, 46182, 58953, 81803, 117906, 163606, 245409, 490818, 3517529, 7035058, 10552587, 21105174]

約数ペア:

[(1, 21105174), (2, 10552587), (3, 7035058), (6, 3517529), (43, 490818), (86, 245409), (129, 163606), (179, 117906), (258, 81803), (358, 58953), (457, 46182), (537, 39302), (914, 23091), (1074, 19651), (1371, 15394), (2742, 7697)]