19202421

素因数分解:

$3^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{8389}}^1$

素因数の和:8508

約数の個数: 16

約数和(自身を含む): 29532800

約数和(自身を除く): 10330379

約数列:

[1, 3, 7, 21, 109, 327, 763, 2289, 8389, 25167, 58723, 176169, 914401, 2743203, 6400807, 19202421]

約数ペア:

[(1, 19202421), (3, 6400807), (7, 2743203), (21, 914401), (109, 176169), (327, 58723), (763, 25167), (2289, 8389)]