20845215

素因数分解:

$3^3\times 5^1\times {\mathrm{154409}}^1$

素因数の和:154423

約数の個数: 16

約数和(自身を含む): 37058400

約数和(自身を除く): 16213185

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 154409, 463227, 772045, 1389681, 2316135, 4169043, 6948405, 20845215]

約数ペア:

[(1, 20845215), (3, 6948405), (5, 4169043), (9, 2316135), (15, 1389681), (27, 772045), (45, 463227), (135, 154409)]