12979855

素因数分解:

$5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{1709}}^1$

素因数の和:1759

約数の個数: 24

約数和(自身を含む): 18714240

約数和(自身を除く): 5734385

約数列:

[1, 5, 7, 31, 35, 49, 155, 217, 245, 1085, 1519, 1709, 7595, 8545, 11963, 52979, 59815, 83741, 264895, 370853, 418705, 1854265, 2595971, 12979855]

約数ペア:

[(1, 12979855), (5, 2595971), (7, 1854265), (31, 418705), (35, 370853), (49, 264895), (155, 83741), (217, 59815), (245, 52979), (1085, 11963), (1519, 8545), (1709, 7595)]