81086661

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{389}}^1$

素因数の和:490

約数の個数: 48

約数和(自身を含む): 131414400

約数和(自身を除く): 50327739

約数列:

[1, 3, 9, 19, 23, 53, 57, 69, 159, 171, 207, 389, 437, 477, 1007, 1167, 1219, 1311, 3021, 3501, 3657, 3933, 7391, 8947, 9063, 10971, 20617, 22173, 23161, 26841, 61851, 66519, 69483, 80523, 169993, 185553, 208449, 391723, 474191, 509979, 1175169, 1422573, 1529937, 3525507, 4267719, 9009629, 27028887, 81086661]

約数ペア:

[(1, 81086661), (3, 27028887), (9, 9009629), (19, 4267719), (23, 3525507), (53, 1529937), (57, 1422573), (69, 1175169), (159, 509979), (171, 474191), (207, 391723), (389, 208449), (437, 185553), (477, 169993), (1007, 80523), (1167, 69483), (1219, 66519), (1311, 61851), (3021, 26841), (3501, 23161), (3657, 22173), (3933, 20617), (7391, 10971), (8947, 9063)]