28204395

素因数分解:

$3^1\times 5^1\times {\mathrm{71}}^2\times {\mathrm{373}}^1$

素因数の和:523

約数の個数: 24

約数和(自身を含む): 45894288

約数和(自身を除く): 17689893

約数列:

[1, 3, 5, 15, 71, 213, 355, 373, 1065, 1119, 1865, 5041, 5595, 15123, 25205, 26483, 75615, 79449, 132415, 397245, 1880293, 5640879, 9401465, 28204395]

約数ペア:

[(1, 28204395), (3, 9401465), (5, 5640879), (15, 1880293), (71, 397245), (213, 132415), (355, 79449), (373, 75615), (1065, 26483), (1119, 25205), (1865, 15123), (5041, 5595)]