20402698

素因数分解:

$2^1\times {\mathrm{79}}^1\times {\mathrm{139}}^1\times {\mathrm{929}}^1$

素因数の和:1149

約数の個数: 16

約数和(自身を含む): 31248000

約数和(自身を除く): 10845302

約数列:

[1, 2, 79, 139, 158, 278, 929, 1858, 10981, 21962, 73391, 129131, 146782, 258262, 10201349, 20402698]

約数ペア:

[(1, 20402698), (2, 10201349), (79, 258262), (139, 146782), (158, 129131), (278, 73391), (929, 21962), (1858, 10981)]