19779151

素因数分解:

$7^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1\times {\mathrm{761}}^1$

素因数の和:894

約数の個数: 16

約数和(自身を含む): 23408640

約数和(自身を除く): 3629489

約数列:

[1, 7, 47, 79, 329, 553, 761, 3713, 5327, 25991, 35767, 60119, 250369, 420833, 2825593, 19779151]

約数ペア:

[(1, 19779151), (7, 2825593), (47, 420833), (79, 250369), (329, 60119), (553, 35767), (761, 25991), (3713, 5327)]