21870568

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{160813}}^1$

素因数の和:160836

約数の個数: 16

約数和(自身を含む): 43419780

約数和(自身を除く): 21549212

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 160813, 321626, 643252, 1286504, 2733821, 5467642, 10935284, 21870568]

約数ペア:

[(1, 21870568), (2, 10935284), (4, 5467642), (8, 2733821), (17, 1286504), (34, 643252), (68, 321626), (136, 160813)]