20157974

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{409}}^1\times {\mathrm{1297}}^1$

素因数の和:1727

約数の個数: 16

約数和(自身を含む): 31930800

約数和(自身を除く): 11772826

約数列:

[1, 2, 19, 38, 409, 818, 1297, 2594, 7771, 15542, 24643, 49286, 530473, 1060946, 10078987, 20157974]

約数ペア:

[(1, 20157974), (2, 10078987), (19, 1060946), (38, 530473), (409, 49286), (818, 24643), (1297, 15542), (2594, 7771)]