20383781

素因数分解:

${\mathrm{11}}^2\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{157}}^1$

素因数の和:245

約数の個数: 24

約数和(自身を含む): 23955960

約数和(自身を除く): 3572179

約数列:

[1, 11, 29, 37, 121, 157, 319, 407, 1073, 1727, 3509, 4477, 4553, 5809, 11803, 18997, 50083, 63899, 129833, 168461, 550913, 702889, 1853071, 20383781]

約数ペア:

[(1, 20383781), (11, 1853071), (29, 702889), (37, 550913), (121, 168461), (157, 129833), (319, 63899), (407, 50083), (1073, 18997), (1727, 11803), (3509, 5809), (4477, 4553)]