20789854857

素因数分解:

$3^2\times {\mathrm{83}}^1\times {\mathrm{251}}^1\times {\mathrm{110881}}^1$

素因数の和:111221

約数の個数: 24

約数和(自身を含む): 30512952288

約数和(自身を除く): 9723097431

約数列:

[1, 3, 9, 83, 249, 251, 747, 753, 2259, 20833, 62499, 110881, 187497, 332643, 997929, 9203123, 27609369, 27831131, 82828107, 83493393, 250480179, 2309983873, 6929951619, 20789854857]

約数ペア:

[(1, 20789854857), (3, 6929951619), (9, 2309983873), (83, 250480179), (249, 83493393), (251, 82828107), (747, 27831131), (753, 27609369), (2259, 9203123), (20833, 997929), (62499, 332643), (110881, 187497)]