31840081

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{103}}^1$

素因数の和:245

約数の個数: 32

約数和(自身を含む): 41000960

約数和(自身を除く): 9160879

約数列:

[1, 7, 13, 43, 79, 91, 103, 301, 553, 559, 721, 1027, 1339, 3397, 3913, 4429, 7189, 8137, 9373, 23779, 31003, 44161, 56959, 57577, 105781, 309127, 349891, 403039, 740467, 2449237, 4548583, 31840081]

約数ペア:

[(1, 31840081), (7, 4548583), (13, 2449237), (43, 740467), (79, 403039), (91, 349891), (103, 309127), (301, 105781), (553, 57577), (559, 56959), (721, 44161), (1027, 31003), (1339, 23779), (3397, 9373), (3913, 8137), (4429, 7189)]