17980839

素因数分解:

$3^3\times {\mathrm{137}}^1\times {\mathrm{4861}}^1$

素因数の和:5007

約数の個数: 16

約数和(自身を含む): 26838240

約数和(自身を除く): 8857401

約数列:

[1, 3, 9, 27, 137, 411, 1233, 3699, 4861, 14583, 43749, 131247, 665957, 1997871, 5993613, 17980839]

約数ペア:

[(1, 17980839), (3, 5993613), (9, 1997871), (27, 665957), (137, 131247), (411, 43749), (1233, 14583), (3699, 4861)]