28521975

素因数分解:

$3^1\times 5^2\times {\mathrm{131}}^1\times {\mathrm{2903}}^1$

素因数の和:3047

約数の個数: 24

約数和(自身を含む): 47532672

約数和(自身を除く): 19010697

約数列:

[1, 3, 5, 15, 25, 75, 131, 393, 655, 1965, 2903, 3275, 8709, 9825, 14515, 43545, 72575, 217725, 380293, 1140879, 1901465, 5704395, 9507325, 28521975]

約数ペア:

[(1, 28521975), (3, 9507325), (5, 5704395), (15, 1901465), (25, 1140879), (75, 380293), (131, 217725), (393, 72575), (655, 43545), (1965, 14515), (2903, 9825), (3275, 8709)]