20471805

素因数分解:

$3^3\times 5^1\times {\mathrm{151643}}^1$

素因数の和:151657

約数の個数: 16

約数和(自身を含む): 36394560

約数和(自身を除く): 15922755

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 151643, 454929, 758215, 1364787, 2274645, 4094361, 6823935, 20471805]

約数ペア:

[(1, 20471805), (3, 6823935), (5, 4094361), (9, 2274645), (15, 1364787), (27, 758215), (45, 454929), (135, 151643)]