18438958

素因数分解:

$2^1\times {\mathrm{61}}^1\times {\mathrm{359}}^1\times {\mathrm{421}}^1$

素因数の和:843

約数の個数: 16

約数和(自身を含む): 28257120

約数和(自身を除く): 9818162

約数列:

[1, 2, 61, 122, 359, 421, 718, 842, 21899, 25681, 43798, 51362, 151139, 302278, 9219479, 18438958]

約数ペア:

[(1, 18438958), (2, 9219479), (61, 302278), (122, 151139), (359, 51362), (421, 43798), (718, 25681), (842, 21899)]