18993709

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{193}}^1\times {\mathrm{827}}^1$

素因数の和:1044

約数の個数: 16

約数和(自身を含む): 23131008

約数和(自身を除く): 4137299

約数列:

[1, 7, 17, 119, 193, 827, 1351, 3281, 5789, 14059, 22967, 98413, 159611, 1117277, 2713387, 18993709]

約数ペア:

[(1, 18993709), (7, 2713387), (17, 1117277), (119, 159611), (193, 98413), (827, 22967), (1351, 14059), (3281, 5789)]