21457262

素因数分解:

$2^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{5471}}^1$

素因数の和:5563

約数の個数: 16

約数和(自身を含む): 33685632

約数和(自身を除く): 12228370

約数列:

[1, 2, 37, 53, 74, 106, 1961, 3922, 5471, 10942, 202427, 289963, 404854, 579926, 10728631, 21457262]

約数ペア:

[(1, 21457262), (2, 10728631), (37, 579926), (53, 404854), (74, 289963), (106, 202427), (1961, 10942), (3922, 5471)]