21228051

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{5087}}^1$

素因数の和:5210

約数の個数: 16

約数和(自身を含む): 30772224

約数和(自身を除く): 9544173

約数列:

[1, 3, 13, 39, 107, 321, 1391, 4173, 5087, 15261, 66131, 198393, 544309, 1632927, 7076017, 21228051]

約数ペア:

[(1, 21228051), (3, 7076017), (13, 1632927), (39, 544309), (107, 198393), (321, 66131), (1391, 15261), (4173, 5087)]