20717521

素因数分解:

${\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{109}}^1\times {\mathrm{467}}^1$

素因数の和:624

約数の個数: 16

約数和(自身を含む): 23474880

約数和(自身を除く): 2757359

約数列:

[1, 11, 37, 109, 407, 467, 1199, 4033, 5137, 17279, 44363, 50903, 190069, 559933, 1883411, 20717521]

約数ペア:

[(1, 20717521), (11, 1883411), (37, 559933), (109, 190069), (407, 50903), (467, 44363), (1199, 17279), (4033, 5137)]