21807423

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{181}}^1\times {\mathrm{1217}}^1$

素因数の和:1415

約数の個数: 24

約数和(自身を含む): 34581456

約数和(自身を除く): 12774033

約数列:

[1, 3, 9, 11, 33, 99, 181, 543, 1217, 1629, 1991, 3651, 5973, 10953, 13387, 17919, 40161, 120483, 220277, 660831, 1982493, 2423047, 7269141, 21807423]

約数ペア:

[(1, 21807423), (3, 7269141), (9, 2423047), (11, 1982493), (33, 660831), (99, 220277), (181, 120483), (543, 40161), (1217, 17919), (1629, 13387), (1991, 10953), (3651, 5973)]