1399665477

素因数分解:

$3^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{687121}}^1$

素因数の和:687228

約数の個数: 16

約数和(自身を含む): 2154814592

約数和(自身を除く): 755149115

約数列:

[1, 3, 7, 21, 97, 291, 679, 2037, 687121, 2061363, 4809847, 14429541, 66650737, 199952211, 466555159, 1399665477]

約数ペア:

[(1, 1399665477), (3, 466555159), (7, 199952211), (21, 66650737), (97, 14429541), (291, 4809847), (679, 2061363), (2037, 687121)]