20915642

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{419}}^1\times {\mathrm{2269}}^1$

素因数の和:2701

約数の個数: 16

約数和(自身を含む): 34322400

約数和(自身を除く): 13406758

約数列:

[1, 2, 11, 22, 419, 838, 2269, 4538, 4609, 9218, 24959, 49918, 950711, 1901422, 10457821, 20915642]

約数ペア:

[(1, 20915642), (2, 10457821), (11, 1901422), (22, 950711), (419, 49918), (838, 24959), (2269, 9218), (4538, 4609)]