21556843

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{3373}}^1$

素因数の和:3474

約数の個数: 16

約数和(自身を含む): 27207936

約数和(自身を除く): 5651093

約数列:

[1, 7, 11, 77, 83, 581, 913, 3373, 6391, 23611, 37103, 259721, 279959, 1959713, 3079549, 21556843]

約数ペア:

[(1, 21556843), (7, 3079549), (11, 1959713), (77, 279959), (83, 259721), (581, 37103), (913, 23611), (3373, 6391)]