21705426

素因数分解:

$2^1\times 3^2\times {\mathrm{149}}^1\times {\mathrm{8093}}^1$

素因数の和:8250

約数の個数: 24

約数和(自身を含む): 47349900

約数和(自身を除く): 25644474

約数列:

[1, 2, 3, 6, 9, 18, 149, 298, 447, 894, 1341, 2682, 8093, 16186, 24279, 48558, 72837, 145674, 1205857, 2411714, 3617571, 7235142, 10852713, 21705426]

約数ペア:

[(1, 21705426), (2, 10852713), (3, 7235142), (6, 3617571), (9, 2411714), (18, 1205857), (149, 145674), (298, 72837), (447, 48558), (894, 24279), (1341, 16186), (2682, 8093)]