21642555

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{4523}}^1$

素因数の和:4571

約数の個数: 32

約数和(自身を含む): 39087360

約数和(自身を除く): 17444805

約数列:

[1, 3, 5, 11, 15, 29, 33, 55, 87, 145, 165, 319, 435, 957, 1595, 4523, 4785, 13569, 22615, 49753, 67845, 131167, 149259, 248765, 393501, 655835, 746295, 1442837, 1967505, 4328511, 7214185, 21642555]

約数ペア:

[(1, 21642555), (3, 7214185), (5, 4328511), (11, 1967505), (15, 1442837), (29, 746295), (33, 655835), (55, 393501), (87, 248765), (145, 149259), (165, 131167), (319, 67845), (435, 49753), (957, 22615), (1595, 13569), (4523, 4785)]