20268975

素因数分解:

$3^1\times 5^2\times {\mathrm{131}}^1\times {\mathrm{2063}}^1$

素因数の和:2207

約数の個数: 24

約数和(自身を含む): 33783552

約数和(自身を除く): 13514577

約数列:

[1, 3, 5, 15, 25, 75, 131, 393, 655, 1965, 2063, 3275, 6189, 9825, 10315, 30945, 51575, 154725, 270253, 810759, 1351265, 4053795, 6756325, 20268975]

約数ペア:

[(1, 20268975), (3, 6756325), (5, 4053795), (15, 1351265), (25, 810759), (75, 270253), (131, 154725), (393, 51575), (655, 30945), (1965, 10315), (2063, 9825), (3275, 6189)]