20782713

素因数分解:

$3^1\times 7^3\times {\mathrm{19}}^1\times {\mathrm{1063}}^1$

素因数の和:1106

約数の個数: 32

約数和(自身を含む): 34048000

約数和(自身を除く): 13265287

約数列:

[1, 3, 7, 19, 21, 49, 57, 133, 147, 343, 399, 931, 1029, 1063, 2793, 3189, 6517, 7441, 19551, 20197, 22323, 52087, 60591, 141379, 156261, 364609, 424137, 989653, 1093827, 2968959, 6927571, 20782713]

約数ペア:

[(1, 20782713), (3, 6927571), (7, 2968959), (19, 1093827), (21, 989653), (49, 424137), (57, 364609), (133, 156261), (147, 141379), (343, 60591), (399, 52087), (931, 22323), (1029, 20197), (1063, 19551), (2793, 7441), (3189, 6517)]