21224745

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{20507}}^1$

素因数の和:20541

約数の個数: 24

約数和(自身を含む): 38390976

約数和(自身を除く): 17166231

約数列:

[1, 3, 5, 9, 15, 23, 45, 69, 115, 207, 345, 1035, 20507, 61521, 102535, 184563, 307605, 471661, 922815, 1414983, 2358305, 4244949, 7074915, 21224745]

約数ペア:

[(1, 21224745), (3, 7074915), (5, 4244949), (9, 2358305), (15, 1414983), (23, 922815), (45, 471661), (69, 307605), (115, 184563), (207, 102535), (345, 61521), (1035, 20507)]