81381867

素因数分解:

$3^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{43543}}^1$

素因数の和:43642

約数の個数: 16

約数和(自身を含む): 125406720

約数和(自身を除く): 44024853

約数列:

[1, 3, 7, 21, 89, 267, 623, 1869, 43543, 130629, 304801, 914403, 3875327, 11625981, 27127289, 81381867]

約数ペア:

[(1, 81381867), (3, 27127289), (7, 11625981), (21, 3875327), (89, 914403), (267, 304801), (623, 130629), (1869, 43543)]