20728214

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{743}}^1$

素因数の和:824

約数の個数: 32

約数和(自身を含む): 35622720

約数和(自身を除く): 14894506

約数列:

[1, 2, 13, 26, 29, 37, 58, 74, 377, 481, 743, 754, 962, 1073, 1486, 2146, 9659, 13949, 19318, 21547, 27491, 27898, 43094, 54982, 280111, 357383, 560222, 714766, 797239, 1594478, 10364107, 20728214]

約数ペア:

[(1, 20728214), (2, 10364107), (13, 1594478), (26, 797239), (29, 714766), (37, 560222), (58, 357383), (74, 280111), (377, 54982), (481, 43094), (743, 27898), (754, 27491), (962, 21547), (1073, 19318), (1486, 13949), (2146, 9659)]