81737243

素因数分解:

$7^4\times {\mathrm{59}}^1\times {\mathrm{577}}^1$

素因数の和:664

約数の個数: 20

約数和(自身を含む): 97138680

約数和(自身を除く): 15401437

約数列:

[1, 7, 49, 59, 343, 413, 577, 2401, 2891, 4039, 20237, 28273, 34043, 141659, 197911, 238301, 1385377, 1668107, 11676749, 81737243]

約数ペア:

[(1, 81737243), (7, 11676749), (49, 1668107), (59, 1385377), (343, 238301), (413, 197911), (577, 141659), (2401, 34043), (2891, 28273), (4039, 20237)]