82811421

素因数分解:

$3^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{397}}^1$

素因数の和:471

約数の個数: 72

約数和(自身を含む): 155716704

約数和(自身を除く): 72905283

約数列:

[1, 3, 7, 9, 11, 21, 33, 43, 49, 63, 77, 99, 129, 147, 231, 301, 387, 397, 441, 473, 539, 693, 903, 1191, 1419, 1617, 2107, 2709, 2779, 3311, 3573, 4257, 4367, 4851, 6321, 8337, 9933, 13101, 17071, 18963, 19453, 23177, 25011, 29799, 30569, 39303, 51213, 58359, 69531, 91707, 119497, 153639, 175077, 187781, 208593, 213983, 275121, 358491, 563343, 641949, 836479, 1075473, 1314467, 1690029, 1925847, 2509437, 3943401, 7528311, 9201269, 11830203, 27603807, 82811421]

約数ペア:

[(1, 82811421), (3, 27603807), (7, 11830203), (9, 9201269), (11, 7528311), (21, 3943401), (33, 2509437), (43, 1925847), (49, 1690029), (63, 1314467), (77, 1075473), (99, 836479), (129, 641949), (147, 563343), (231, 358491), (301, 275121), (387, 213983), (397, 208593), (441, 187781), (473, 175077), (539, 153639), (693, 119497), (903, 91707), (1191, 69531), (1419, 58359), (1617, 51213), (2107, 39303), (2709, 30569), (2779, 29799), (3311, 25011), (3573, 23177), (4257, 19453), (4367, 18963), (4851, 17071), (6321, 13101), (8337, 9933)]