20678385

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{15149}}^1$

素因数の和:15177

約数の個数: 32

約数和(自身を含む): 40723200

約数和(自身を除く): 20044815

約数列:

[1, 3, 5, 7, 13, 15, 21, 35, 39, 65, 91, 105, 195, 273, 455, 1365, 15149, 45447, 75745, 106043, 196937, 227235, 318129, 530215, 590811, 984685, 1378559, 1590645, 2954055, 4135677, 6892795, 20678385]

約数ペア:

[(1, 20678385), (3, 6892795), (5, 4135677), (7, 2954055), (13, 1590645), (15, 1378559), (21, 984685), (35, 590811), (39, 530215), (65, 318129), (91, 227235), (105, 196937), (195, 106043), (273, 75745), (455, 45447), (1365, 15149)]