20931284

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{27983}}^1$

素因数の和:28015

約数の個数: 24

約数和(自身を含む): 42311808

約数和(自身を除く): 21380524

約数列:

[1, 2, 4, 11, 17, 22, 34, 44, 68, 187, 374, 748, 27983, 55966, 111932, 307813, 475711, 615626, 951422, 1231252, 1902844, 5232821, 10465642, 20931284]

約数ペア:

[(1, 20931284), (2, 10465642), (4, 5232821), (11, 1902844), (17, 1231252), (22, 951422), (34, 615626), (44, 475711), (68, 307813), (187, 111932), (374, 55966), (748, 27983)]