28218915

素因数分解:

$3^3\times 5^1\times {\mathrm{209029}}^1$

素因数の和:209043

約数の個数: 16

約数和(自身を含む): 50167200

約数和(自身を除く): 21948285

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 209029, 627087, 1045145, 1881261, 3135435, 5643783, 9406305, 28218915]

約数ペア:

[(1, 28218915), (3, 9406305), (5, 5643783), (9, 3135435), (15, 1881261), (27, 1045145), (45, 627087), (135, 209029)]