21073581

素因数分解:

$3^3\times {\mathrm{71}}^1\times {\mathrm{10993}}^1$

素因数の和:11073

約数の個数: 16

約数和(自身を含む): 31662720

約数和(自身を除く): 10589139

約数列:

[1, 3, 9, 27, 71, 213, 639, 1917, 10993, 32979, 98937, 296811, 780503, 2341509, 7024527, 21073581]

約数ペア:

[(1, 21073581), (3, 7024527), (9, 2341509), (27, 780503), (71, 296811), (213, 98937), (639, 32979), (1917, 10993)]