18980026

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{823}}^1\times {\mathrm{887}}^1$

素因数の和:1725

約数の個数: 16

約数和(自身を含む): 30731904

約数和(自身を除く): 11751878

約数列:

[1, 2, 13, 26, 823, 887, 1646, 1774, 10699, 11531, 21398, 23062, 730001, 1460002, 9490013, 18980026]

約数ペア:

[(1, 18980026), (2, 9490013), (13, 1460002), (26, 730001), (823, 23062), (887, 21398), (1646, 11531), (1774, 10699)]