201515691

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{151}}^1\times {\mathrm{1801}}^1$

素因数の和:1987

約数の個数: 32

約数和(自身を含む): 306772480

約数和(自身を除く): 105256789

約数列:

[1, 3, 13, 19, 39, 57, 151, 247, 453, 741, 1801, 1963, 2869, 5403, 5889, 8607, 23413, 34219, 37297, 70239, 102657, 111891, 271951, 444847, 815853, 1334541, 3535363, 5167069, 10606089, 15501207, 67171897, 201515691]

約数ペア:

[(1, 201515691), (3, 67171897), (13, 15501207), (19, 10606089), (39, 5167069), (57, 3535363), (151, 1334541), (247, 815853), (453, 444847), (741, 271951), (1801, 111891), (1963, 102657), (2869, 70239), (5403, 37297), (5889, 34219), (8607, 23413)]