20705644

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{4513}}^1$

素因数の和:4585

約数の個数: 24

約数和(自身を含む): 38423168

約数和(自身を除く): 17717524

約数列:

[1, 2, 4, 31, 37, 62, 74, 124, 148, 1147, 2294, 4513, 4588, 9026, 18052, 139903, 166981, 279806, 333962, 559612, 667924, 5176411, 10352822, 20705644]

約数ペア:

[(1, 20705644), (2, 10352822), (4, 5176411), (31, 667924), (37, 559612), (62, 333962), (74, 279806), (124, 166981), (148, 139903), (1147, 18052), (2294, 9026), (4513, 4588)]