21358425

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{25889}}^1$

素因数の和:25913

約数の個数: 24

約数和(自身を含む): 38524320

約数和(自身を除く): 17165895

約数列:

[1, 3, 5, 11, 15, 25, 33, 55, 75, 165, 275, 825, 25889, 77667, 129445, 284779, 388335, 647225, 854337, 1423895, 1941675, 4271685, 7119475, 21358425]

約数ペア:

[(1, 21358425), (3, 7119475), (5, 4271685), (11, 1941675), (15, 1423895), (25, 854337), (33, 647225), (55, 388335), (75, 284779), (165, 129445), (275, 77667), (825, 25889)]