20426924

素因数分解:

$2^2\times 7^2\times {\mathrm{89}}^1\times {\mathrm{1171}}^1$

素因数の和:1278

約数の個数: 36

約数和(自身を含む): 42086520

約数和(自身を除く): 21659596

約数列:

[1, 2, 4, 7, 14, 28, 49, 89, 98, 178, 196, 356, 623, 1171, 1246, 2342, 2492, 4361, 4684, 8197, 8722, 16394, 17444, 32788, 57379, 104219, 114758, 208438, 229516, 416876, 729533, 1459066, 2918132, 5106731, 10213462, 20426924]

約数ペア:

[(1, 20426924), (2, 10213462), (4, 5106731), (7, 2918132), (14, 1459066), (28, 729533), (49, 416876), (89, 229516), (98, 208438), (178, 114758), (196, 104219), (356, 57379), (623, 32788), (1171, 17444), (1246, 16394), (2342, 8722), (2492, 8197), (4361, 4684)]