20375467

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{239}}^1\times {\mathrm{641}}^1$

素因数の和:906

約数の個数: 16

約数和(自身を含む): 24652800

約数和(自身を除く): 4277333

約数列:

[1, 7, 19, 133, 239, 641, 1673, 4487, 4541, 12179, 31787, 85253, 153199, 1072393, 2910781, 20375467]

約数ペア:

[(1, 20375467), (7, 2910781), (19, 1072393), (133, 153199), (239, 85253), (641, 31787), (1673, 12179), (4487, 4541)]