18131757

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{1567}}^1$

素因数の和:1625

約数の個数: 32

約数和(自身を含む): 30105600

約数和(自身を除く): 11973843

約数列:

[1, 3, 7, 19, 21, 29, 57, 87, 133, 203, 399, 551, 609, 1567, 1653, 3857, 4701, 10969, 11571, 29773, 32907, 45443, 89319, 136329, 208411, 318101, 625233, 863417, 954303, 2590251, 6043919, 18131757]

約数ペア:

[(1, 18131757), (3, 6043919), (7, 2590251), (19, 954303), (21, 863417), (29, 625233), (57, 318101), (87, 208411), (133, 136329), (203, 89319), (399, 45443), (551, 32907), (609, 29773), (1567, 11571), (1653, 10969), (3857, 4701)]