21381002

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{557}}^1\times {\mathrm{1129}}^1$

素因数の和:1705

約数の個数: 16

約数和(自身を含む): 34049160

約数和(自身を除く): 12668158

約数列:

[1, 2, 17, 34, 557, 1114, 1129, 2258, 9469, 18938, 19193, 38386, 628853, 1257706, 10690501, 21381002]

約数ペア:

[(1, 21381002), (2, 10690501), (17, 1257706), (34, 628853), (557, 38386), (1114, 19193), (1129, 18938), (2258, 9469)]