20638138

素因数分解:

$2^1\times {\mathrm{71}}^1\times {\mathrm{101}}^1\times {\mathrm{1439}}^1$

素因数の和:1613

約数の個数: 16

約数和(自身を含む): 31726080

約数和(自身を除く): 11087942

約数列:

[1, 2, 71, 101, 142, 202, 1439, 2878, 7171, 14342, 102169, 145339, 204338, 290678, 10319069, 20638138]

約数ペア:

[(1, 20638138), (2, 10319069), (71, 290678), (101, 204338), (142, 145339), (202, 102169), (1439, 14342), (2878, 7171)]