12420205

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{983}}^1$

素因数の和:1033

約数の個数: 24

約数和(自身を含む): 17995392

約数和(自身を除く): 5575187

約数列:

[1, 5, 7, 19, 35, 95, 133, 361, 665, 983, 1805, 2527, 4915, 6881, 12635, 18677, 34405, 93385, 130739, 354863, 653695, 1774315, 2484041, 12420205]

約数ペア:

[(1, 12420205), (5, 2484041), (7, 1774315), (19, 653695), (35, 354863), (95, 130739), (133, 93385), (361, 34405), (665, 18677), (983, 12635), (1805, 6881), (2527, 4915)]