21704360

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{7433}}^1$

素因数の和:7517

約数の個数: 32

約数和(自身を含む): 49510440

約数和(自身を除く): 27806080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 146, 292, 365, 584, 730, 1460, 2920, 7433, 14866, 29732, 37165, 59464, 74330, 148660, 297320, 542609, 1085218, 2170436, 2713045, 4340872, 5426090, 10852180, 21704360]

約数ペア:

[(1, 21704360), (2, 10852180), (4, 5426090), (5, 4340872), (8, 2713045), (10, 2170436), (20, 1085218), (40, 542609), (73, 297320), (146, 148660), (292, 74330), (365, 59464), (584, 37165), (730, 29732), (1460, 14866), (2920, 7433)]