20516705

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{21943}}^1$

素因数の和:21976

約数の個数: 16

約数和(自身を含む): 28439424

約数和(自身を除く): 7922719

約数列:

[1, 5, 11, 17, 55, 85, 187, 935, 21943, 109715, 241373, 373031, 1206865, 1865155, 4103341, 20516705]

約数ペア:

[(1, 20516705), (5, 4103341), (11, 1865155), (17, 1206865), (55, 373031), (85, 241373), (187, 109715), (935, 21943)]