18880667

素因数分解:

${\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{67}}^1\times {\mathrm{409}}^1$

素因数の和:542

約数の個数: 16

約数和(自身を含む): 21077280

約数和(自身を除く): 2196613

約数列:

[1, 13, 53, 67, 409, 689, 871, 3551, 5317, 21677, 27403, 46163, 281801, 356239, 1452359, 18880667]

約数ペア:

[(1, 18880667), (13, 1452359), (53, 356239), (67, 281801), (409, 46163), (689, 27403), (871, 21677), (3551, 5317)]