81897417

素因数分解:

$3^2\times 7^1\times {\mathrm{151}}^1\times {\mathrm{8609}}^1$

素因数の和:8773

約数の個数: 24

約数和(自身を含む): 136106880

約数和(自身を除く): 54209463

約数列:

[1, 3, 7, 9, 21, 63, 151, 453, 1057, 1359, 3171, 8609, 9513, 25827, 60263, 77481, 180789, 542367, 1299959, 3899877, 9099713, 11699631, 27299139, 81897417]

約数ペア:

[(1, 81897417), (3, 27299139), (7, 11699631), (9, 9099713), (21, 3899877), (63, 1299959), (151, 542367), (453, 180789), (1057, 77481), (1359, 60263), (3171, 25827), (8609, 9513)]