19765879

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{1153}}^1$

素因数の和:1270

約数の個数: 16

約数和(自身を含む): 23633920

約数和(自身を除く): 3868041

約数列:

[1, 7, 31, 79, 217, 553, 1153, 2449, 8071, 17143, 35743, 91087, 250201, 637609, 2823697, 19765879]

約数ペア:

[(1, 19765879), (7, 2823697), (31, 637609), (79, 250201), (217, 91087), (553, 35743), (1153, 17143), (2449, 8071)]