15781129

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{109}}^1$

素因数の和:209

約数の個数: 32

約数和(自身を含む): 20599040

約数和(自身を除く): 4817911

約数列:

[1, 7, 13, 37, 43, 91, 109, 259, 301, 481, 559, 763, 1417, 1591, 3367, 3913, 4033, 4687, 9919, 11137, 20683, 28231, 32809, 52429, 60931, 144781, 173419, 367003, 426517, 1213933, 2254447, 15781129]

約数ペア:

[(1, 15781129), (7, 2254447), (13, 1213933), (37, 426517), (43, 367003), (91, 173419), (109, 144781), (259, 60931), (301, 52429), (481, 32809), (559, 28231), (763, 20683), (1417, 11137), (1591, 9919), (3367, 4687), (3913, 4033)]