8379399

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{21001}}^1$

素因数の和:21030

約数の個数: 16

約数和(自身を含む): 13441280

約数和(自身を除く): 5061881

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 21001, 63003, 147007, 399019, 441021, 1197057, 2793133, 8379399]

約数ペア:

[(1, 8379399), (3, 2793133), (7, 1197057), (19, 441021), (21, 399019), (57, 147007), (133, 63003), (399, 21001)]