19994261

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{401}}^1\times {\mathrm{419}}^1$

素因数の和:844

約数の個数: 16

約数和(自身を含む): 24312960

約数和(自身を除く): 4318699

約数列:

[1, 7, 17, 119, 401, 419, 2807, 2933, 6817, 7123, 47719, 49861, 168019, 1176133, 2856323, 19994261]

約数ペア:

[(1, 19994261), (7, 2856323), (17, 1176133), (119, 168019), (401, 49861), (419, 47719), (2807, 7123), (2933, 6817)]