18891301

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{409}}^1$

素因数の和:469

約数の個数: 32

約数和(自身を含む): 24796800

約数和(自身を除く): 5905499

約数列:

[1, 11, 13, 17, 19, 143, 187, 209, 221, 247, 323, 409, 2431, 2717, 3553, 4199, 4499, 5317, 6953, 7771, 46189, 58487, 76483, 85481, 90389, 101023, 132107, 994279, 1111253, 1453177, 1717391, 18891301]

約数ペア:

[(1, 18891301), (11, 1717391), (13, 1453177), (17, 1111253), (19, 994279), (143, 132107), (187, 101023), (209, 90389), (221, 85481), (247, 76483), (323, 58487), (409, 46189), (2431, 7771), (2717, 6953), (3553, 5317), (4199, 4499)]