20918523

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{157}}^1\times {\mathrm{1931}}^1$

素因数の和:2114

約数の個数: 16

約数和(自身を含む): 29304576

約数和(自身を除く): 8386053

約数列:

[1, 3, 23, 69, 157, 471, 1931, 3611, 5793, 10833, 44413, 133239, 303167, 909501, 6972841, 20918523]

約数ペア:

[(1, 20918523), (3, 6972841), (23, 909501), (69, 303167), (157, 133239), (471, 44413), (1931, 10833), (3611, 5793)]