18708277

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{157}}^1\times {\mathrm{587}}^1$

素因数の和:780

約数の個数: 16

約数和(自身を含む): 22296960

約数和(自身を除く): 3588683

約数列:

[1, 7, 29, 157, 203, 587, 1099, 4109, 4553, 17023, 31871, 92159, 119161, 645113, 2672611, 18708277]

約数ペア:

[(1, 18708277), (7, 2672611), (29, 645113), (157, 119161), (203, 92159), (587, 31871), (1099, 17023), (4109, 4553)]