18565713

素因数分解:

$3^3\times {\mathrm{29}}^1\times {\mathrm{131}}^1\times {\mathrm{181}}^1$

素因数の和:350

約数の個数: 32

約数和(自身を含む): 28828800

約数和(自身を除く): 10263087

約数列:

[1, 3, 9, 27, 29, 87, 131, 181, 261, 393, 543, 783, 1179, 1629, 3537, 3799, 4887, 5249, 11397, 15747, 23711, 34191, 47241, 71133, 102573, 141723, 213399, 640197, 687619, 2062857, 6188571, 18565713]

約数ペア:

[(1, 18565713), (3, 6188571), (9, 2062857), (27, 687619), (29, 640197), (87, 213399), (131, 141723), (181, 102573), (261, 71133), (393, 47241), (543, 34191), (783, 23711), (1179, 15747), (1629, 11397), (3537, 5249), (3799, 4887)]