81285507

素因数分解:

$3^2\times {\mathrm{101}}^1\times {\mathrm{223}}^1\times {\mathrm{401}}^1$

素因数の和:731

約数の個数: 24

約数和(自身を含む): 119403648

約数和(自身を除く): 38118141

約数列:

[1, 3, 9, 101, 223, 303, 401, 669, 909, 1203, 2007, 3609, 22523, 40501, 67569, 89423, 121503, 202707, 268269, 364509, 804807, 9031723, 27095169, 81285507]

約数ペア:

[(1, 81285507), (3, 27095169), (9, 9031723), (101, 804807), (223, 364509), (303, 268269), (401, 202707), (669, 121503), (909, 89423), (1203, 67569), (2007, 40501), (3609, 22523)]