21492495

素因数分解:

$3^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{4637}}^1$

素因数の和:4751

約数の個数: 24

約数和(自身を含む): 37623456

約数和(自身を除く): 16130961

約数列:

[1, 3, 5, 9, 15, 45, 103, 309, 515, 927, 1545, 4635, 4637, 13911, 23185, 41733, 69555, 208665, 477611, 1432833, 2388055, 4298499, 7164165, 21492495]

約数ペア:

[(1, 21492495), (3, 7164165), (5, 4298499), (9, 2388055), (15, 1432833), (45, 477611), (103, 208665), (309, 69555), (515, 41733), (927, 23185), (1545, 13911), (4635, 4637)]