19989386

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{317}}^1\times {\mathrm{769}}^1$

素因数の和:1129

約数の個数: 16

約数和(自身を含む): 30852360

約数和(自身を除く): 10862974

約数列:

[1, 2, 41, 82, 317, 634, 769, 1538, 12997, 25994, 31529, 63058, 243773, 487546, 9994693, 19989386]

約数ペア:

[(1, 19989386), (2, 9994693), (41, 487546), (82, 243773), (317, 63058), (634, 31529), (769, 25994), (1538, 12997)]