21897132381

素因数分解:

$3^3\times {\mathrm{449}}^1\times {\mathrm{1806247}}^1$

素因数の和:1806705

約数の個数: 16

約数和(自身を含む): 32512464000

約数和(自身を除く): 10615331619

約数列:

[1, 3, 9, 27, 449, 1347, 4041, 12123, 1806247, 5418741, 16256223, 48768669, 811004903, 2433014709, 7299044127, 21897132381]

約数ペア:

[(1, 21897132381), (3, 7299044127), (9, 2433014709), (27, 811004903), (449, 48768669), (1347, 16256223), (4041, 5418741), (12123, 1806247)]