20278215

素因数分解:

$3^3\times 5^1\times {\mathrm{150209}}^1$

素因数の和:150223

約数の個数: 16

約数和(自身を含む): 36050400

約数和(自身を除く): 15772185

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 150209, 450627, 751045, 1351881, 2253135, 4055643, 6759405, 20278215]

約数ペア:

[(1, 20278215), (3, 6759405), (5, 4055643), (9, 2253135), (15, 1351881), (27, 751045), (45, 450627), (135, 150209)]