17490789

素因数分解:

$3^3\times {\mathrm{31}}^1\times {\mathrm{20897}}^1$

素因数の和:20937

約数の個数: 16

約数和(自身を含む): 26749440

約数和(自身を除く): 9258651

約数列:

[1, 3, 9, 27, 31, 93, 279, 837, 20897, 62691, 188073, 564219, 647807, 1943421, 5830263, 17490789]

約数ペア:

[(1, 17490789), (3, 5830263), (9, 1943421), (27, 647807), (31, 564219), (93, 188073), (279, 62691), (837, 20897)]