21704379

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{311}}^1\times {\mathrm{541}}^1$

素因数の和:898

約数の個数: 16

約数和(自身を含む): 29762304

約数和(自身を除く): 8057925

約数列:

[1, 3, 43, 129, 311, 541, 933, 1623, 13373, 23263, 40119, 69789, 168251, 504753, 7234793, 21704379]

約数ペア:

[(1, 21704379), (3, 7234793), (43, 504753), (129, 168251), (311, 69789), (541, 40119), (933, 23263), (1623, 13373)]