21717957

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{163}}^1\times {\mathrm{1931}}^1$

素因数の和:2120

約数の個数: 16

約数和(自身を含む): 30417408

約数和(自身を除く): 8699451

約数列:

[1, 3, 23, 69, 163, 489, 1931, 3749, 5793, 11247, 44413, 133239, 314753, 944259, 7239319, 21717957]

約数ペア:

[(1, 21717957), (3, 7239319), (23, 944259), (69, 314753), (163, 133239), (489, 44413), (1931, 11247), (3749, 5793)]