20188329

素因数分解:

$3^1\times 7^1\times {\mathrm{241}}^1\times {\mathrm{3989}}^1$

素因数の和:4240

約数の個数: 16

約数和(自身を含む): 30898560

約数和(自身を除く): 10710231

約数列:

[1, 3, 7, 21, 241, 723, 1687, 3989, 5061, 11967, 27923, 83769, 961349, 2884047, 6729443, 20188329]

約数ペア:

[(1, 20188329), (3, 6729443), (7, 2884047), (21, 961349), (241, 83769), (723, 27923), (1687, 11967), (3989, 5061)]