20400963

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{43}}^1\times {\mathrm{1307}}^1$

素因数の和:1375

約数の個数: 24

約数和(自身を含む): 30617664

約数和(自身を除く): 10216701

約数列:

[1, 3, 11, 33, 43, 121, 129, 363, 473, 1307, 1419, 3921, 5203, 14377, 15609, 43131, 56201, 158147, 168603, 474441, 618211, 1854633, 6800321, 20400963]

約数ペア:

[(1, 20400963), (3, 6800321), (11, 1854633), (33, 618211), (43, 474441), (121, 168603), (129, 158147), (363, 56201), (473, 43131), (1307, 15609), (1419, 14377), (3921, 5203)]