21899485

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{8311}}^1$

素因数の和:8364

約数の個数: 16

約数和(自身を含む): 28726272

約数和(自身を除く): 6826787

約数列:

[1, 5, 17, 31, 85, 155, 527, 2635, 8311, 41555, 141287, 257641, 706435, 1288205, 4379897, 21899485]

約数ペア:

[(1, 21899485), (5, 4379897), (17, 1288205), (31, 706435), (85, 257641), (155, 141287), (527, 41555), (2635, 8311)]