18859915

素因数分解:

$5^1\times {\mathrm{73}}^1\times {\mathrm{163}}^1\times {\mathrm{317}}^1$

素因数の和:558

約数の個数: 16

約数和(自身を含む): 23155488

約数和(自身を除く): 4295573

約数列:

[1, 5, 73, 163, 317, 365, 815, 1585, 11899, 23141, 51671, 59495, 115705, 258355, 3771983, 18859915]

約数ペア:

[(1, 18859915), (5, 3771983), (73, 258355), (163, 115705), (317, 59495), (365, 51671), (815, 23141), (1585, 11899)]