261640203

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{18143}}^1$

素因数の和:18199

約数の個数: 32

約数和(自身を含む): 418037760

約数和(自身を除く): 156397557

約数列:

[1, 3, 11, 19, 23, 33, 57, 69, 209, 253, 437, 627, 759, 1311, 4807, 14421, 18143, 54429, 199573, 344717, 417289, 598719, 1034151, 1251867, 3791887, 4590179, 7928491, 11375661, 13770537, 23785473, 87213401, 261640203]

約数ペア:

[(1, 261640203), (3, 87213401), (11, 23785473), (19, 13770537), (23, 11375661), (33, 7928491), (57, 4590179), (69, 3791887), (209, 1251867), (253, 1034151), (437, 598719), (627, 417289), (759, 344717), (1311, 199573), (4807, 54429), (14421, 18143)]