247915521

素因数分解:

$3^2\times 7^1\times {\mathrm{1951}}^1\times {\mathrm{2017}}^1$

素因数の和:3981

約数の個数: 24

約数和(自身を含む): 409670144

約数和(自身を除く): 161754623

約数列:

[1, 3, 7, 9, 21, 63, 1951, 2017, 5853, 6051, 13657, 14119, 17559, 18153, 40971, 42357, 122913, 127071, 3935167, 11805501, 27546169, 35416503, 82638507, 247915521]

約数ペア:

[(1, 247915521), (3, 82638507), (7, 35416503), (9, 27546169), (21, 11805501), (63, 3935167), (1951, 127071), (2017, 122913), (5853, 42357), (6051, 40971), (13657, 18153), (14119, 17559)]