261909778

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{109}}^1\times {\mathrm{7109}}^1$

素因数の和:7246

約数の個数: 24

約数和(自身を含む): 429372900

約数和(自身を除く): 167463122

約数列:

[1, 2, 13, 26, 109, 169, 218, 338, 1417, 2834, 7109, 14218, 18421, 36842, 92417, 184834, 774881, 1201421, 1549762, 2402842, 10073453, 20146906, 130954889, 261909778]

約数ペア:

[(1, 261909778), (2, 130954889), (13, 20146906), (26, 10073453), (109, 2402842), (169, 1549762), (218, 1201421), (338, 774881), (1417, 184834), (2834, 92417), (7109, 36842), (14218, 18421)]