18920974

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{3863}}^1$

素因数の和:3975

約数の個数: 16

約数和(自身を含む): 29675520

約数和(自身を除く): 10754546

約数列:

[1, 2, 31, 62, 79, 158, 2449, 3863, 4898, 7726, 119753, 239506, 305177, 610354, 9460487, 18920974]

約数ペア:

[(1, 18920974), (2, 9460487), (31, 610354), (62, 305177), (79, 239506), (158, 119753), (2449, 7726), (3863, 4898)]