21224045

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{1423}}^1$

素因数の和:1604

約数の個数: 16

約数和(自身を含む): 26999040

約数和(自身を除く): 5774995

約数列:

[1, 5, 19, 95, 157, 785, 1423, 2983, 7115, 14915, 27037, 135185, 223411, 1117055, 4244809, 21224045]

約数ペア:

[(1, 21224045), (5, 4244809), (19, 1117055), (95, 223411), (157, 135185), (785, 27037), (1423, 14915), (2983, 7115)]