20422563

素因数分解:

$3^1\times 7^3\times {\mathrm{89}}^1\times {\mathrm{223}}^1$

素因数の和:336

約数の個数: 32

約数和(自身を含む): 32256000

約数和(自身を除く): 11833437

約数列:

[1, 3, 7, 21, 49, 89, 147, 223, 267, 343, 623, 669, 1029, 1561, 1869, 4361, 4683, 10927, 13083, 19847, 30527, 32781, 59541, 76489, 91581, 138929, 229467, 416787, 972503, 2917509, 6807521, 20422563]

約数ペア:

[(1, 20422563), (3, 6807521), (7, 2917509), (21, 972503), (49, 416787), (89, 229467), (147, 138929), (223, 91581), (267, 76489), (343, 59541), (623, 32781), (669, 30527), (1029, 19847), (1561, 13083), (1869, 10927), (4361, 4683)]