21233807

素因数分解:

$7^2\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{227}}^1$

素因数の和:347

約数の個数: 24

約数和(自身を含む): 26199936

約数和(自身を除く): 4966129

約数列:

[1, 7, 23, 49, 83, 161, 227, 581, 1127, 1589, 1909, 4067, 5221, 11123, 13363, 18841, 36547, 93541, 131887, 255829, 433343, 923209, 3033401, 21233807]

約数ペア:

[(1, 21233807), (7, 3033401), (23, 923209), (49, 433343), (83, 255829), (161, 131887), (227, 93541), (581, 36547), (1127, 18841), (1589, 13363), (1909, 11123), (4067, 5221)]