21990147225

素因数分解:

$3^1\times 5^2\times {\mathrm{103}}^1\times {\mathrm{2846621}}^1$

素因数の和:2846737

約数の個数: 24

約数和(自身を含む): 36710037312

約数和(自身を除く): 14719890087

約数列:

[1, 3, 5, 15, 25, 75, 103, 309, 515, 1545, 2575, 7725, 2846621, 8539863, 14233105, 42699315, 71165525, 213496575, 293201963, 879605889, 1466009815, 4398029445, 7330049075, 21990147225]

約数ペア:

[(1, 21990147225), (3, 7330049075), (5, 4398029445), (15, 1466009815), (25, 879605889), (75, 293201963), (103, 213496575), (309, 71165525), (515, 42699315), (1545, 14233105), (2575, 8539863), (7725, 2846621)]