81127233

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1$

素因数の和:171

約数の個数: 72

約数和(自身を含む): 139426560

約数和(自身を除く): 58299327

約数列:

[1, 3, 9, 11, 23, 33, 41, 69, 79, 99, 121, 123, 207, 237, 253, 363, 369, 451, 711, 759, 869, 943, 1089, 1353, 1817, 2277, 2607, 2783, 2829, 3239, 4059, 4961, 5451, 7821, 8349, 8487, 9559, 9717, 10373, 14883, 16353, 19987, 25047, 28677, 29151, 31119, 35629, 44649, 59961, 74497, 86031, 93357, 106887, 114103, 179883, 219857, 223491, 320661, 342309, 391919, 659571, 670473, 819467, 1026927, 1175757, 1978713, 2458401, 3527271, 7375203, 9014137, 27042411, 81127233]

約数ペア:

[(1, 81127233), (3, 27042411), (9, 9014137), (11, 7375203), (23, 3527271), (33, 2458401), (41, 1978713), (69, 1175757), (79, 1026927), (99, 819467), (121, 670473), (123, 659571), (207, 391919), (237, 342309), (253, 320661), (363, 223491), (369, 219857), (451, 179883), (711, 114103), (759, 106887), (869, 93357), (943, 86031), (1089, 74497), (1353, 59961), (1817, 44649), (2277, 35629), (2607, 31119), (2783, 29151), (2829, 28677), (3239, 25047), (4059, 19987), (4961, 16353), (5451, 14883), (7821, 10373), (8349, 9717), (8487, 9559)]