21804206

素因数分解:

$2^1\times {\mathrm{61}}^1\times {\mathrm{313}}^1\times {\mathrm{571}}^1$

素因数の和:947

約数の個数: 16

約数和(自身を含む): 33407088

約数和(自身を除く): 11602882

約数列:

[1, 2, 61, 122, 313, 571, 626, 1142, 19093, 34831, 38186, 69662, 178723, 357446, 10902103, 21804206]

約数ペア:

[(1, 21804206), (2, 10902103), (61, 357446), (122, 178723), (313, 69662), (571, 38186), (626, 34831), (1142, 19093)]