19937277

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{311}}^1\times {\mathrm{419}}^1$

素因数の和:753

約数の個数: 24

約数和(自身を含む): 30663360

約数和(自身を除く): 10726083

約数列:

[1, 3, 9, 17, 51, 153, 311, 419, 933, 1257, 2799, 3771, 5287, 7123, 15861, 21369, 47583, 64107, 130309, 390927, 1172781, 2215253, 6645759, 19937277]

約数ペア:

[(1, 19937277), (3, 6645759), (9, 2215253), (17, 1172781), (51, 390927), (153, 130309), (311, 64107), (419, 47583), (933, 21369), (1257, 15861), (2799, 7123), (3771, 5287)]