721161129

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{260441}}^1$

素因数の和:260528

約数の個数: 16

約数和(自身を含む): 1050102144

約数和(自身を除く): 328941015

約数列:

[1, 3, 13, 39, 71, 213, 923, 2769, 260441, 781323, 3385733, 10157199, 18491311, 55473933, 240387043, 721161129]

約数ペア:

[(1, 721161129), (3, 240387043), (13, 55473933), (39, 18491311), (71, 10157199), (213, 3385733), (923, 781323), (2769, 260441)]