20718712

素因数分解:

$2^3\times 7^1\times {\mathrm{419}}^1\times {\mathrm{883}}^1$

素因数の和:1315

約数の個数: 32

約数和(自身を含む): 44553600

約数和(自身を除く): 23834888

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 419, 838, 883, 1676, 1766, 2933, 3352, 3532, 5866, 6181, 7064, 11732, 12362, 23464, 24724, 49448, 369977, 739954, 1479908, 2589839, 2959816, 5179678, 10359356, 20718712]

約数ペア:

[(1, 20718712), (2, 10359356), (4, 5179678), (7, 2959816), (8, 2589839), (14, 1479908), (28, 739954), (56, 369977), (419, 49448), (838, 24724), (883, 23464), (1676, 12362), (1766, 11732), (2933, 7064), (3352, 6181), (3532, 5866)]