18017631

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{887}}^1$

素因数の和:991

約数の個数: 24

約数和(自身を含む): 27197664

約数和(自身を除く): 9180033

約数列:

[1, 3, 9, 37, 61, 111, 183, 333, 549, 887, 2257, 2661, 6771, 7983, 20313, 32819, 54107, 98457, 162321, 295371, 486963, 2001959, 6005877, 18017631]

約数ペア:

[(1, 18017631), (3, 6005877), (9, 2001959), (37, 486963), (61, 295371), (111, 162321), (183, 98457), (333, 54107), (549, 32819), (887, 20313), (2257, 7983), (2661, 6771)]