81570501

素因数分解:

$3^2\times {\mathrm{97}}^1\times {\mathrm{223}}^1\times {\mathrm{419}}^1$

素因数の和:745

約数の個数: 24

約数和(自身を含む): 119857920

約数和(自身を除く): 38287419

約数列:

[1, 3, 9, 97, 223, 291, 419, 669, 873, 1257, 2007, 3771, 21631, 40643, 64893, 93437, 121929, 194679, 280311, 365787, 840933, 9063389, 27190167, 81570501]

約数ペア:

[(1, 81570501), (3, 27190167), (9, 9063389), (97, 840933), (223, 365787), (291, 280311), (419, 194679), (669, 121929), (873, 93437), (1257, 64893), (2007, 40643), (3771, 21631)]