16221689

素因数分解:

${\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{223}}^1\times {\mathrm{389}}^1$

素因数の和:640

約数の個数: 16

約数和(自身を含む): 18869760

約数和(自身を除く): 2648071

約数列:

[1, 11, 17, 187, 223, 389, 2453, 3791, 4279, 6613, 41701, 72743, 86747, 954217, 1474699, 16221689]

約数ペア:

[(1, 16221689), (11, 1474699), (17, 954217), (187, 86747), (223, 72743), (389, 41701), (2453, 6613), (3791, 4279)]