20805344

素因数分解:

$2^5\times 7^1\times {\mathrm{293}}^1\times {\mathrm{317}}^1$

素因数の和:627

約数の個数: 48

約数和(自身を含む): 47119968

約数和(自身を除く): 26314624

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 112, 224, 293, 317, 586, 634, 1172, 1268, 2051, 2219, 2344, 2536, 4102, 4438, 4688, 5072, 8204, 8876, 9376, 10144, 16408, 17752, 32816, 35504, 65632, 71008, 92881, 185762, 371524, 650167, 743048, 1300334, 1486096, 2600668, 2972192, 5201336, 10402672, 20805344]

約数ペア:

[(1, 20805344), (2, 10402672), (4, 5201336), (7, 2972192), (8, 2600668), (14, 1486096), (16, 1300334), (28, 743048), (32, 650167), (56, 371524), (112, 185762), (224, 92881), (293, 71008), (317, 65632), (586, 35504), (634, 32816), (1172, 17752), (1268, 16408), (2051, 10144), (2219, 9376), (2344, 8876), (2536, 8204), (4102, 5072), (4438, 4688)]