21321198

素因数分解:

$2^1\times 3^3\times {\mathrm{394837}}^1$

素因数の和:394848

約数の個数: 16

約数和(自身を含む): 47380560

約数和(自身を除く): 26059362

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 394837, 789674, 1184511, 2369022, 3553533, 7107066, 10660599, 21321198]

約数ペア:

[(1, 21321198), (2, 10660599), (3, 7107066), (6, 3553533), (9, 2369022), (18, 1184511), (27, 789674), (54, 394837)]