19957998

素因数分解:

$2^1\times 3^1\times {\mathrm{53}}^1\times {\mathrm{62761}}^1$

素因数の和:62819

約数の個数: 16

約数和(自身を含む): 40669776

約数和(自身を除く): 20711778

約数列:

[1, 2, 3, 6, 53, 106, 159, 318, 62761, 125522, 188283, 376566, 3326333, 6652666, 9978999, 19957998]

約数ペア:

[(1, 19957998), (2, 9978999), (3, 6652666), (6, 3326333), (53, 376566), (106, 188283), (159, 125522), (318, 62761)]