12389855

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{2053}}^1$

素因数の和:2146

約数の個数: 16

約数和(自身を含む): 15971904

約数和(自身を除く): 3582049

約数列:

[1, 5, 17, 71, 85, 355, 1207, 2053, 6035, 10265, 34901, 145763, 174505, 728815, 2477971, 12389855]

約数ペア:

[(1, 12389855), (5, 2477971), (17, 728815), (71, 174505), (85, 145763), (355, 34901), (1207, 10265), (2053, 6035)]