20383979

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{13933}}^1$

素因数の和:13970

約数の個数: 16

約数和(自身を含む): 26753280

約数和(自身を除く): 6369301

約数列:

[1, 7, 11, 19, 77, 133, 209, 1463, 13933, 97531, 153263, 264727, 1072841, 1853089, 2911997, 20383979]

約数ペア:

[(1, 20383979), (7, 2911997), (11, 1853089), (19, 1072841), (77, 264727), (133, 153263), (209, 97531), (1463, 13933)]