21271125

素因数分解:

$3^1\times 5^3\times {\mathrm{131}}^1\times {\mathrm{433}}^1$

素因数の和:582

約数の個数: 32

約数和(自身を含む): 35747712

約数和(自身を除く): 14476587

約数列:

[1, 3, 5, 15, 25, 75, 125, 131, 375, 393, 433, 655, 1299, 1965, 2165, 3275, 6495, 9825, 10825, 16375, 32475, 49125, 54125, 56723, 162375, 170169, 283615, 850845, 1418075, 4254225, 7090375, 21271125]

約数ペア:

[(1, 21271125), (3, 7090375), (5, 4254225), (15, 1418075), (25, 850845), (75, 283615), (125, 170169), (131, 162375), (375, 56723), (393, 54125), (433, 49125), (655, 32475), (1299, 16375), (1965, 10825), (2165, 9825), (3275, 6495)]