21637713

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{2731}}^1$

素因数の和:2892

約数の個数: 16

約数和(自身を含む): 30598400

約数和(自身を除く): 8960687

約数列:

[1, 3, 19, 57, 139, 417, 2641, 2731, 7923, 8193, 51889, 155667, 379609, 1138827, 7212571, 21637713]

約数ペア:

[(1, 21637713), (3, 7212571), (19, 1138827), (57, 379609), (139, 155667), (417, 51889), (2641, 8193), (2731, 7923)]