18791688

素因数分解:

$2^3\times 3^1\times {\mathrm{43}}^1\times {\mathrm{131}}^1\times {\mathrm{139}}^1$

素因数の和:322

約数の個数: 64

約数和(自身を含む): 48787200

約数和(自身を除く): 29995512

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 43, 86, 129, 131, 139, 172, 258, 262, 278, 344, 393, 417, 516, 524, 556, 786, 834, 1032, 1048, 1112, 1572, 1668, 3144, 3336, 5633, 5977, 11266, 11954, 16899, 17931, 18209, 22532, 23908, 33798, 35862, 36418, 45064, 47816, 54627, 67596, 71724, 72836, 109254, 135192, 143448, 145672, 218508, 437016, 782987, 1565974, 2348961, 3131948, 4697922, 6263896, 9395844, 18791688]

約数ペア:

[(1, 18791688), (2, 9395844), (3, 6263896), (4, 4697922), (6, 3131948), (8, 2348961), (12, 1565974), (24, 782987), (43, 437016), (86, 218508), (129, 145672), (131, 143448), (139, 135192), (172, 109254), (258, 72836), (262, 71724), (278, 67596), (344, 54627), (393, 47816), (417, 45064), (516, 36418), (524, 35862), (556, 33798), (786, 23908), (834, 22532), (1032, 18209), (1048, 17931), (1112, 16899), (1572, 11954), (1668, 11266), (3144, 5977), (3336, 5633)]