18719530

素因数分解:

$2^1\times 5^1\times {\mathrm{521}}^1\times {\mathrm{3593}}^1$

素因数の和:4121

約数の個数: 16

約数和(自身を含む): 33769224

約数和(自身を除く): 15049694

約数列:

[1, 2, 5, 10, 521, 1042, 2605, 3593, 5210, 7186, 17965, 35930, 1871953, 3743906, 9359765, 18719530]

約数ペア:

[(1, 18719530), (2, 9359765), (5, 3743906), (10, 1871953), (521, 35930), (1042, 17965), (2605, 7186), (3593, 5210)]