21563927

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{4591}}^1$

素因数の和:4670

約数の個数: 16

約数和(自身を含む): 27331584

約数和(自身を除く): 5767657

約数列:

[1, 7, 11, 61, 77, 427, 671, 4591, 4697, 32137, 50501, 280051, 353507, 1960357, 3080561, 21563927]

約数ペア:

[(1, 21563927), (7, 3080561), (11, 1960357), (61, 353507), (77, 280051), (427, 50501), (671, 32137), (4591, 4697)]