21645428

素因数分解:

$2^2\times 7^1\times {\mathrm{181}}^1\times {\mathrm{4271}}^1$

素因数の和:4463

約数の個数: 24

約数和(自身を含む): 43540224

約数和(自身を除く): 21894796

約数列:

[1, 2, 4, 7, 14, 28, 181, 362, 724, 1267, 2534, 4271, 5068, 8542, 17084, 29897, 59794, 119588, 773051, 1546102, 3092204, 5411357, 10822714, 21645428]

約数ペア:

[(1, 21645428), (2, 10822714), (4, 5411357), (7, 3092204), (14, 1546102), (28, 773051), (181, 119588), (362, 59794), (724, 29897), (1267, 17084), (2534, 8542), (4271, 5068)]