21240655919

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{311}}^1\times {\mathrm{10853}}^1$

素因数の和:11231

約数の個数: 32

約数和(自身を含む): 26007920640

約数和(自身を除く): 4767264721

約数列:

[1, 7, 29, 31, 203, 217, 311, 899, 2177, 6293, 9019, 9641, 10853, 63133, 67487, 75971, 279589, 314737, 336443, 1957123, 2203159, 2355101, 3375283, 9756847, 23626981, 68297929, 97883207, 104633773, 685182449, 732436411, 3034379417, 21240655919]

約数ペア:

[(1, 21240655919), (7, 3034379417), (29, 732436411), (31, 685182449), (203, 104633773), (217, 97883207), (311, 68297929), (899, 23626981), (2177, 9756847), (6293, 3375283), (9019, 2355101), (9641, 2203159), (10853, 1957123), (63133, 336443), (67487, 314737), (75971, 279589)]