20338202

素因数分解:

$2^1\times {\mathrm{139}}^1\times {\mathrm{149}}^1\times {\mathrm{491}}^1$

素因数の和:781

約数の個数: 16

約数和(自身を含む): 30996000

約数和(自身を除く): 10657798

約数列:

[1, 2, 139, 149, 278, 298, 491, 982, 20711, 41422, 68249, 73159, 136498, 146318, 10169101, 20338202]

約数ペア:

[(1, 20338202), (2, 10169101), (139, 146318), (149, 136498), (278, 73159), (298, 68249), (491, 41422), (982, 20711)]