18305001

素因数分解:

$3^3\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{431}}^1$

素因数の和:475

約数の個数: 48

約数和(自身を含む): 32175360

約数和(自身を除く): 13870359

約数列:

[1, 3, 9, 11, 13, 27, 33, 39, 99, 117, 121, 143, 297, 351, 363, 429, 431, 1089, 1287, 1293, 1573, 3267, 3861, 3879, 4719, 4741, 5603, 11637, 14157, 14223, 16809, 42471, 42669, 50427, 52151, 61633, 128007, 151281, 156453, 184899, 469359, 554697, 677963, 1408077, 1664091, 2033889, 6101667, 18305001]

約数ペア:

[(1, 18305001), (3, 6101667), (9, 2033889), (11, 1664091), (13, 1408077), (27, 677963), (33, 554697), (39, 469359), (99, 184899), (117, 156453), (121, 151281), (143, 128007), (297, 61633), (351, 52151), (363, 50427), (429, 42669), (431, 42471), (1089, 16809), (1287, 14223), (1293, 14157), (1573, 11637), (3267, 5603), (3861, 4741), (3879, 4719)]