20565886971

素因数分解:

$3^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{3781189}}^1$

素因数の和:3781243

約数の個数: 24

約数和(自身を含む): 32760230160

約数和(自身を除く): 12194343189

約数列:

[1, 3, 7, 21, 37, 49, 111, 147, 259, 777, 1813, 5439, 3781189, 11343567, 26468323, 79404969, 139903993, 185278261, 419711979, 555834783, 979327951, 2937983853, 6855295657, 20565886971]

約数ペア:

[(1, 20565886971), (3, 6855295657), (7, 2937983853), (21, 979327951), (37, 555834783), (49, 419711979), (111, 185278261), (147, 139903993), (259, 79404969), (777, 26468323), (1813, 11343567), (5439, 3781189)]