21250345

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{2917}}^1$

素因数の和:3000

約数の個数: 16

約数和(自身を含む): 26892288

約数和(自身を除く): 5641943

約数列:

[1, 5, 31, 47, 155, 235, 1457, 2917, 7285, 14585, 90427, 137099, 452135, 685495, 4250069, 21250345]

約数ペア:

[(1, 21250345), (5, 4250069), (31, 685495), (47, 452135), (155, 137099), (235, 90427), (1457, 14585), (2917, 7285)]