21580559

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{21559}}^1$

素因数の和:21590

約数の個数: 16

約数和(自身を含む): 28976640

約数和(自身を除く): 7396081

約数列:

[1, 7, 11, 13, 77, 91, 143, 1001, 21559, 150913, 237149, 280267, 1660043, 1961869, 3082937, 21580559]

約数ペア:

[(1, 21580559), (7, 3082937), (11, 1961869), (13, 1660043), (77, 280267), (91, 237149), (143, 150913), (1001, 21559)]