261756157

素因数分解:

${\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{2939}}^1$

素因数の和:3013

約数の個数: 24

約数和(自身を含む): 309899520

約数和(自身を除く): 48143363

約数列:

[1, 13, 17, 31, 169, 221, 403, 527, 2873, 2939, 5239, 6851, 38207, 49963, 89063, 91109, 496691, 649519, 1184417, 1548853, 8443747, 15397421, 20135089, 261756157]

約数ペア:

[(1, 261756157), (13, 20135089), (17, 15397421), (31, 8443747), (169, 1548853), (221, 1184417), (403, 649519), (527, 496691), (2873, 91109), (2939, 89063), (5239, 49963), (6851, 38207)]