19577728

素因数分解:

$2^7\times {\mathrm{43}}^1\times {\mathrm{3557}}^1$

素因数の和:3614

約数の個数: 32

約数和(自身を含む): 39920760

約数和(自身を除く): 20343032

約数列:

[1, 2, 4, 8, 16, 32, 43, 64, 86, 128, 172, 344, 688, 1376, 2752, 3557, 5504, 7114, 14228, 28456, 56912, 113824, 152951, 227648, 305902, 455296, 611804, 1223608, 2447216, 4894432, 9788864, 19577728]

約数ペア:

[(1, 19577728), (2, 9788864), (4, 4894432), (8, 2447216), (16, 1223608), (32, 611804), (43, 455296), (64, 305902), (86, 227648), (128, 152951), (172, 113824), (344, 56912), (688, 28456), (1376, 14228), (2752, 7114), (3557, 5504)]