8721321

素因数分解:

$3^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{7039}}^1$

素因数の和:7108

約数の個数: 16

約数和(自身を含む): 13516800

約数和(自身を除く): 4795479

約数列:

[1, 3, 7, 21, 59, 177, 413, 1239, 7039, 21117, 49273, 147819, 415301, 1245903, 2907107, 8721321]

約数ペア:

[(1, 8721321), (3, 2907107), (7, 1245903), (21, 415301), (59, 147819), (177, 49273), (413, 21117), (1239, 7039)]