15640347

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{263}}^1\times {\mathrm{461}}^1$

素因数の和:770

約数の個数: 16

約数和(自身を含む): 21466368

約数和(自身を除く): 5826021

約数列:

[1, 3, 43, 129, 263, 461, 789, 1383, 11309, 19823, 33927, 59469, 121243, 363729, 5213449, 15640347]

約数ペア:

[(1, 15640347), (3, 5213449), (43, 363729), (129, 121243), (263, 59469), (461, 33927), (789, 19823), (1383, 11309)]