21248851

素因数分解:

${\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{157}}^1\times {\mathrm{359}}^1$

素因数の和:558

約数の個数: 16

約数和(自身を含む): 23889600

約数和(自身を除く): 2640749

約数列:

[1, 13, 29, 157, 359, 377, 2041, 4553, 4667, 10411, 56363, 59189, 135343, 732719, 1634527, 21248851]

約数ペア:

[(1, 21248851), (13, 1634527), (29, 732719), (157, 135343), (359, 59189), (377, 56363), (2041, 10411), (4553, 4667)]