20617156

素因数分解:

$2^2\times 7^1\times {\mathrm{97}}^1\times {\mathrm{7591}}^1$

素因数の和:7699

約数の個数: 24

約数和(自身を含む): 41664896

約数和(自身を除く): 21047740

約数列:

[1, 2, 4, 7, 14, 28, 97, 194, 388, 679, 1358, 2716, 7591, 15182, 30364, 53137, 106274, 212548, 736327, 1472654, 2945308, 5154289, 10308578, 20617156]

約数ペア:

[(1, 20617156), (2, 10308578), (4, 5154289), (7, 2945308), (14, 1472654), (28, 736327), (97, 212548), (194, 106274), (388, 53137), (679, 30364), (1358, 15182), (2716, 7591)]