207016621

素因数分解:

$7^4\times {\mathrm{151}}^1\times {\mathrm{571}}^1$

素因数の和:750

約数の個数: 20

約数和(自身を含む): 243530144

約数和(自身を除く): 36513523

約数列:

[1, 7, 49, 151, 343, 571, 1057, 2401, 3997, 7399, 27979, 51793, 86221, 195853, 362551, 603547, 1370971, 4224829, 29573803, 207016621]

約数ペア:

[(1, 207016621), (7, 29573803), (49, 4224829), (151, 1370971), (343, 603547), (571, 362551), (1057, 195853), (2401, 86221), (3997, 51793), (7399, 27979)]