21287235

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{45779}}^1$

素因数の和:45818

約数の個数: 16

約数和(自身を含む): 35159040

約数和(自身を除く): 13871805

約数列:

[1, 3, 5, 15, 31, 93, 155, 465, 45779, 137337, 228895, 686685, 1419149, 4257447, 7095745, 21287235]

約数ペア:

[(1, 21287235), (3, 7095745), (5, 4257447), (15, 1419149), (31, 686685), (93, 228895), (155, 137337), (465, 45779)]