21774580

素因数分解:

$2^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{5471}}^1$

素因数の和:5679

約数の個数: 24

約数和(自身を含む): 45964800

約数和(自身を除く): 24190220

約数列:

[1, 2, 4, 5, 10, 20, 199, 398, 796, 995, 1990, 3980, 5471, 10942, 21884, 27355, 54710, 109420, 1088729, 2177458, 4354916, 5443645, 10887290, 21774580]

約数ペア:

[(1, 21774580), (2, 10887290), (4, 5443645), (5, 4354916), (10, 2177458), (20, 1088729), (199, 109420), (398, 54710), (796, 27355), (995, 21884), (1990, 10942), (3980, 5471)]