81123021

素因数分解:

$3^2\times 7^1\times {\mathrm{229}}^1\times {\mathrm{5623}}^1$

素因数の和:5865

約数の個数: 24

約数和(自身を含む): 134526080

約数和(自身を除く): 53403059

約数列:

[1, 3, 7, 9, 21, 63, 229, 687, 1603, 2061, 4809, 5623, 14427, 16869, 39361, 50607, 118083, 354249, 1287667, 3863001, 9013669, 11589003, 27041007, 81123021]

約数ペア:

[(1, 81123021), (3, 27041007), (7, 11589003), (9, 9013669), (21, 3863001), (63, 1287667), (229, 354249), (687, 118083), (1603, 50607), (2061, 39361), (4809, 16869), (5623, 14427)]