18791295

素因数分解:

$3^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{131}}^2$

素因数の和:343

約数の個数: 24

約数和(自身を含む): 30712368

約数和(自身を除く): 11921073

約数列:

[1, 3, 5, 15, 73, 131, 219, 365, 393, 655, 1095, 1965, 9563, 17161, 28689, 47815, 51483, 85805, 143445, 257415, 1252753, 3758259, 6263765, 18791295]

約数ペア:

[(1, 18791295), (3, 6263765), (5, 3758259), (15, 1252753), (73, 257415), (131, 143445), (219, 85805), (365, 51483), (393, 47815), (655, 28689), (1095, 17161), (1965, 9563)]