21148799

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{7727}}^1$

素因数の和:7774

約数の個数: 16

約数和(自身を含む): 26707968

約数和(自身を除く): 5559169

約数列:

[1, 7, 17, 23, 119, 161, 391, 2737, 7727, 54089, 131359, 177721, 919513, 1244047, 3021257, 21148799]

約数ペア:

[(1, 21148799), (7, 3021257), (17, 1244047), (23, 919513), (119, 177721), (161, 131359), (391, 54089), (2737, 7727)]