21621039

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{6361}}^1$

素因数の和:6478

約数の個数: 16

約数和(自身を含む): 31759104

約数和(自身を除く): 10138065

約数列:

[1, 3, 11, 33, 103, 309, 1133, 3399, 6361, 19083, 69971, 209913, 655183, 1965549, 7207013, 21621039]

約数ペア:

[(1, 21621039), (3, 7207013), (11, 1965549), (33, 655183), (103, 209913), (309, 69971), (1133, 19083), (3399, 6361)]