28591409

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{19543}}^1$

素因数の和:19580

約数の個数: 16

約数和(自身を含む): 37524480

約数和(自身を除く): 8933071

約数列:

[1, 7, 11, 19, 77, 133, 209, 1463, 19543, 136801, 214973, 371317, 1504811, 2599219, 4084487, 28591409]

約数ペア:

[(1, 28591409), (7, 4084487), (11, 2599219), (19, 1504811), (77, 371317), (133, 214973), (209, 136801), (1463, 19543)]