21631311

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{293}}^1\times {\mathrm{631}}^1$

素因数の和:943

約数の個数: 24

約数和(自身を含む): 33817056

約数和(自身を除く): 12185745

約数列:

[1, 3, 9, 13, 39, 117, 293, 631, 879, 1893, 2637, 3809, 5679, 8203, 11427, 24609, 34281, 73827, 184883, 554649, 1663947, 2403479, 7210437, 21631311]

約数ペア:

[(1, 21631311), (3, 7210437), (9, 2403479), (13, 1663947), (39, 554649), (117, 184883), (293, 73827), (631, 34281), (879, 24609), (1893, 11427), (2637, 8203), (3809, 5679)]