20957608

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{19697}}^1$

素因数の和:19729

約数の個数: 32

約数和(自身を含む): 47275200

約数和(自身を除く): 26317592

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 56, 76, 133, 152, 266, 532, 1064, 19697, 39394, 78788, 137879, 157576, 275758, 374243, 551516, 748486, 1103032, 1496972, 2619701, 2993944, 5239402, 10478804, 20957608]

約数ペア:

[(1, 20957608), (2, 10478804), (4, 5239402), (7, 2993944), (8, 2619701), (14, 1496972), (19, 1103032), (28, 748486), (38, 551516), (56, 374243), (76, 275758), (133, 157576), (152, 137879), (266, 78788), (532, 39394), (1064, 19697)]