19718145

素因数分解:

$3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{9323}}^1$

素因数の和:9381

約数の個数: 24

約数和(自身を含む): 34909056

約数和(自身を除く): 15190911

約数列:

[1, 3, 5, 9, 15, 45, 47, 141, 235, 423, 705, 2115, 9323, 27969, 46615, 83907, 139845, 419535, 438181, 1314543, 2190905, 3943629, 6572715, 19718145]

約数ペア:

[(1, 19718145), (3, 6572715), (5, 3943629), (9, 2190905), (15, 1314543), (45, 438181), (47, 419535), (141, 139845), (235, 83907), (423, 46615), (705, 27969), (2115, 9323)]