20669770

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{187907}}^1$

素因数の和:187925

約数の個数: 16

約数和(自身を含む): 40588128

約数和(自身を除く): 19918358

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 187907, 375814, 939535, 1879070, 2066977, 4133954, 10334885, 20669770]

約数ペア:

[(1, 20669770), (2, 10334885), (5, 4133954), (10, 2066977), (11, 1879070), (22, 939535), (55, 375814), (110, 187907)]