21394156

素因数分解:

$2^2\times 7^1\times {\mathrm{727}}^1\times {\mathrm{1051}}^1$

素因数の和:1789

約数の個数: 24

約数和(自身を含む): 42887936

約数和(自身を除く): 21493780

約数列:

[1, 2, 4, 7, 14, 28, 727, 1051, 1454, 2102, 2908, 4204, 5089, 7357, 10178, 14714, 20356, 29428, 764077, 1528154, 3056308, 5348539, 10697078, 21394156]

約数ペア:

[(1, 21394156), (2, 10697078), (4, 5348539), (7, 3056308), (14, 1528154), (28, 764077), (727, 29428), (1051, 20356), (1454, 14714), (2102, 10178), (2908, 7357), (4204, 5089)]