18217431

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{227}}^1\times {\mathrm{241}}^1$

素因数の和:511

約数の個数: 24

約数和(自身を含む): 27256944

約数和(自身を除く): 9039513

約数列:

[1, 3, 9, 37, 111, 227, 241, 333, 681, 723, 2043, 2169, 8399, 8917, 25197, 26751, 54707, 75591, 80253, 164121, 492363, 2024159, 6072477, 18217431]

約数ペア:

[(1, 18217431), (3, 6072477), (9, 2024159), (37, 492363), (111, 164121), (227, 80253), (241, 75591), (333, 54707), (681, 26751), (723, 25197), (2043, 8917), (2169, 8399)]