201520257

素因数分解:

$3^1\times {\mathrm{53}}^1\times {\mathrm{443}}^1\times {\mathrm{2861}}^1$

素因数の和:3360

約数の個数: 16

約数和(自身を含む): 274477248

約数和(自身を除く): 72956991

約数列:

[1, 3, 53, 159, 443, 1329, 2861, 8583, 23479, 70437, 151633, 454899, 1267423, 3802269, 67173419, 201520257]

約数ペア:

[(1, 201520257), (3, 67173419), (53, 3802269), (159, 1267423), (443, 454899), (1329, 151633), (2861, 70437), (8583, 23479)]