20027428

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{5557}}^1$

素因数の和:5631

約数の個数: 24

約数和(自身を含む): 37816632

約数和(自身を除く): 17789204

約数列:

[1, 2, 4, 17, 34, 53, 68, 106, 212, 901, 1802, 3604, 5557, 11114, 22228, 94469, 188938, 294521, 377876, 589042, 1178084, 5006857, 10013714, 20027428]

約数ペア:

[(1, 20027428), (2, 10013714), (4, 5006857), (17, 1178084), (34, 589042), (53, 377876), (68, 294521), (106, 188938), (212, 94469), (901, 22228), (1802, 11114), (3604, 5557)]