20531655

素因数分解:

$3^2\times 5^1\times {\mathrm{467}}^1\times {\mathrm{977}}^1$

素因数の和:1455

約数の個数: 24

約数和(自身を含む): 35700912

約数和(自身を除く): 15169257

約数列:

[1, 3, 5, 9, 15, 45, 467, 977, 1401, 2335, 2931, 4203, 4885, 7005, 8793, 14655, 21015, 43965, 456259, 1368777, 2281295, 4106331, 6843885, 20531655]

約数ペア:

[(1, 20531655), (3, 6843885), (5, 4106331), (9, 2281295), (15, 1368777), (45, 456259), (467, 43965), (977, 21015), (1401, 14655), (2335, 8793), (2931, 7005), (4203, 4885)]