261566217

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{241}}^1\times {\mathrm{577}}^1$

素因数の和:854

約数の個数: 48

約数和(自身を含む): 436413120

約数和(自身を除く): 174846903

約数列:

[1, 3, 9, 11, 19, 33, 57, 99, 171, 209, 241, 577, 627, 723, 1731, 1881, 2169, 2651, 4579, 5193, 6347, 7953, 10963, 13737, 19041, 23859, 32889, 41211, 50369, 57123, 98667, 120593, 139057, 151107, 361779, 417171, 453321, 1085337, 1251513, 1529627, 2642083, 4588881, 7926249, 13766643, 23778747, 29062913, 87188739, 261566217]

約数ペア:

[(1, 261566217), (3, 87188739), (9, 29062913), (11, 23778747), (19, 13766643), (33, 7926249), (57, 4588881), (99, 2642083), (171, 1529627), (209, 1251513), (241, 1085337), (577, 453321), (627, 417171), (723, 361779), (1731, 151107), (1881, 139057), (2169, 120593), (2651, 98667), (4579, 57123), (5193, 50369), (6347, 41211), (7953, 32889), (10963, 23859), (13737, 19041)]