20618415

素因数分解:

$3^3\times 5^1\times {\mathrm{152729}}^1$

素因数の和:152743

約数の個数: 16

約数和(自身を含む): 36655200

約数和(自身を除く): 16036785

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 152729, 458187, 763645, 1374561, 2290935, 4123683, 6872805, 20618415]

約数ペア:

[(1, 20618415), (3, 6872805), (5, 4123683), (9, 2290935), (15, 1374561), (27, 763645), (45, 458187), (135, 152729)]