21293390

素因数分解:

$2^1\times 5^1\times {\mathrm{313}}^1\times {\mathrm{6803}}^1$

素因数の和:7123

約数の個数: 16

約数和(自身を含む): 38456208

約数和(自身を除く): 17162818

約数列:

[1, 2, 5, 10, 313, 626, 1565, 3130, 6803, 13606, 34015, 68030, 2129339, 4258678, 10646695, 21293390]

約数ペア:

[(1, 21293390), (2, 10646695), (5, 4258678), (10, 2129339), (313, 68030), (626, 34015), (1565, 13606), (3130, 6803)]