21056842

素因数分解:

$2^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{8443}}^1$

素因数の和:8517

約数の個数: 16

約数和(自身を含む): 33438240

約数和(自身を除く): 12381398

約数列:

[1, 2, 29, 43, 58, 86, 1247, 2494, 8443, 16886, 244847, 363049, 489694, 726098, 10528421, 21056842]

約数ペア:

[(1, 21056842), (2, 10528421), (29, 726098), (43, 489694), (58, 363049), (86, 244847), (1247, 16886), (2494, 8443)]