81722529

素因数分解:

$3^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{35059}}^1$

素因数の和:35109

約数の個数: 24

約数和(自身を含む): 138557120

約数和(自身を除く): 56834591

約数列:

[1, 3, 7, 9, 21, 37, 63, 111, 259, 333, 777, 2331, 35059, 105177, 245413, 315531, 736239, 1297183, 2208717, 3891549, 9080281, 11674647, 27240843, 81722529]

約数ペア:

[(1, 81722529), (3, 27240843), (7, 11674647), (9, 9080281), (21, 3891549), (37, 2208717), (63, 1297183), (111, 736239), (259, 315531), (333, 245413), (777, 105177), (2331, 35059)]