21157394

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{3851}}^1$

素因数の和:3961

約数の個数: 16

約数和(自身を含む): 33003936

約数和(自身を除く): 11846542

約数列:

[1, 2, 41, 67, 82, 134, 2747, 3851, 5494, 7702, 157891, 258017, 315782, 516034, 10578697, 21157394]

約数ペア:

[(1, 21157394), (2, 10578697), (41, 516034), (67, 315782), (82, 258017), (134, 157891), (2747, 7702), (3851, 5494)]