21390378

素因数分解:

$2^1\times 3^1\times {\mathrm{109}}^1\times {\mathrm{32707}}^1$

素因数の和:32821

約数の個数: 16

約数和(自身を含む): 43174560

約数和(自身を除く): 21784182

約数列:

[1, 2, 3, 6, 109, 218, 327, 654, 32707, 65414, 98121, 196242, 3565063, 7130126, 10695189, 21390378]

約数ペア:

[(1, 21390378), (2, 10695189), (3, 7130126), (6, 3565063), (109, 196242), (218, 98121), (327, 65414), (654, 32707)]