20494815

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{223}}^1\times {\mathrm{557}}^1$

素因数の和:799

約数の個数: 32

約数和(自身を含む): 35997696

約数和(自身を除く): 15502881

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 223, 557, 669, 1115, 1671, 2453, 2785, 3345, 6127, 7359, 8355, 12265, 18381, 30635, 36795, 91905, 124211, 372633, 621055, 1366321, 1863165, 4098963, 6831605, 20494815]

約数ペア:

[(1, 20494815), (3, 6831605), (5, 4098963), (11, 1863165), (15, 1366321), (33, 621055), (55, 372633), (165, 124211), (223, 91905), (557, 36795), (669, 30635), (1115, 18381), (1671, 12265), (2453, 8355), (2785, 7359), (3345, 6127)]