20811604

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{27823}}^1$

素因数の和:27855

約数の個数: 24

約数和(自身を含む): 42069888

約数和(自身を除く): 21258284

約数列:

[1, 2, 4, 11, 17, 22, 34, 44, 68, 187, 374, 748, 27823, 55646, 111292, 306053, 472991, 612106, 945982, 1224212, 1891964, 5202901, 10405802, 20811604]

約数ペア:

[(1, 20811604), (2, 10405802), (4, 5202901), (11, 1891964), (17, 1224212), (22, 945982), (34, 612106), (44, 472991), (68, 306053), (187, 111292), (374, 55646), (748, 27823)]