20907467

素因数分解:

$7^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1321}}^1$

素因数の和:1371

約数の個数: 24

約数和(自身を含む): 27127440

約数和(自身を除く): 6219973

約数列:

[1, 7, 17, 19, 49, 119, 133, 323, 833, 931, 1321, 2261, 9247, 15827, 22457, 25099, 64729, 157199, 175693, 426683, 1100393, 1229851, 2986781, 20907467]

約数ペア:

[(1, 20907467), (7, 2986781), (17, 1229851), (19, 1100393), (49, 426683), (119, 175693), (133, 157199), (323, 64729), (833, 25099), (931, 22457), (1321, 15827), (2261, 9247)]