858648399

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{2152001}}^1$

素因数の和:2152030

約数の個数: 16

約数和(自身を含む): 1377281280

約数和(自身を除く): 518632881

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 2152001, 6456003, 15064007, 40888019, 45192021, 122664057, 286216133, 858648399]

約数ペア:

[(1, 858648399), (3, 286216133), (7, 122664057), (19, 45192021), (21, 40888019), (57, 15064007), (133, 6456003), (399, 2152001)]