12990173

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{719}}^1$

素因数の和:844

約数の個数: 16

約数和(自身を含む): 15552000

約数和(自身を除く): 2561827

約数列:

[1, 7, 29, 89, 203, 623, 719, 2581, 5033, 18067, 20851, 63991, 145957, 447937, 1855739, 12990173]

約数ペア:

[(1, 12990173), (7, 1855739), (29, 447937), (89, 145957), (203, 63991), (623, 20851), (719, 18067), (2581, 5033)]