66721105

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{12011}}^1$

素因数の和:12128

約数の個数: 16

約数和(自身を含む): 88216128

約数和(自身を除く): 21495023

約数列:

[1, 5, 11, 55, 101, 505, 1111, 5555, 12011, 60055, 132121, 660605, 1213111, 6065555, 13344221, 66721105]

約数ペア:

[(1, 66721105), (5, 13344221), (11, 6065555), (55, 1213111), (101, 660605), (505, 132121), (1111, 60055), (5555, 12011)]