21258870

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{22859}}^1$

素因数の和:22900

約数の個数: 32

約数和(自身を含む): 52669440

約数和(自身を除く): 31410570

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 31, 62, 93, 155, 186, 310, 465, 930, 22859, 45718, 68577, 114295, 137154, 228590, 342885, 685770, 708629, 1417258, 2125887, 3543145, 4251774, 7086290, 10629435, 21258870]

約数ペア:

[(1, 21258870), (2, 10629435), (3, 7086290), (5, 4251774), (6, 3543145), (10, 2125887), (15, 1417258), (30, 708629), (31, 685770), (62, 342885), (93, 228590), (155, 137154), (186, 114295), (310, 68577), (465, 45718), (930, 22859)]