18387421

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{151}}^1$

素因数の和:229

約数の個数: 32

約数和(自身を含む): 22982400

約数和(自身を除く): 4594979

約数列:

[1, 13, 17, 19, 29, 151, 221, 247, 323, 377, 493, 551, 1963, 2567, 2869, 4199, 4379, 6409, 7163, 9367, 33371, 37297, 48773, 56927, 74443, 83201, 121771, 634049, 967759, 1081613, 1414417, 18387421]

約数ペア:

[(1, 18387421), (13, 1414417), (17, 1081613), (19, 967759), (29, 634049), (151, 121771), (221, 83201), (247, 74443), (323, 56927), (377, 48773), (493, 37297), (551, 33371), (1963, 9367), (2567, 7163), (2869, 6409), (4199, 4379)]