20384785

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{10427}}^1$

素因数の和:10472

約数の個数: 16

約数和(自身を含む): 27029376

約数和(自身を除く): 6644591

約数列:

[1, 5, 17, 23, 85, 115, 391, 1955, 10427, 52135, 177259, 239821, 886295, 1199105, 4076957, 20384785]

約数ペア:

[(1, 20384785), (5, 4076957), (17, 1199105), (23, 886295), (85, 239821), (115, 177259), (391, 52135), (1955, 10427)]