81128879

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{139}}^2$

素因数の和:327

約数の個数: 24

約数和(自身を含む): 98083440

約数和(自身を除く): 16954561

約数列:

[1, 13, 17, 19, 139, 221, 247, 323, 1807, 2363, 2641, 4199, 19321, 30719, 34333, 44897, 251173, 328457, 367099, 583661, 4269941, 4772287, 6240683, 81128879]

約数ペア:

[(1, 81128879), (13, 6240683), (17, 4772287), (19, 4269941), (139, 583661), (221, 367099), (247, 328457), (323, 251173), (1807, 44897), (2363, 34333), (2641, 30719), (4199, 19321)]