18664245

素因数分解:

$3^2\times 5^1\times {\mathrm{241}}^1\times {\mathrm{1721}}^1$

素因数の和:1973

約数の個数: 24

約数和(自身を含む): 32504472

約数和(自身を除く): 13840227

約数列:

[1, 3, 5, 9, 15, 45, 241, 723, 1205, 1721, 2169, 3615, 5163, 8605, 10845, 15489, 25815, 77445, 414761, 1244283, 2073805, 3732849, 6221415, 18664245]

約数ペア:

[(1, 18664245), (3, 6221415), (5, 3732849), (9, 2073805), (15, 1244283), (45, 414761), (241, 77445), (723, 25815), (1205, 15489), (1721, 10845), (2169, 8605), (3615, 5163)]