20405378

素因数分解:

$2^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{47017}}^1$

素因数の和:47057

約数の個数: 16

約数和(自身を含む): 36109824

約数和(自身を除く): 15704446

約数列:

[1, 2, 7, 14, 31, 62, 217, 434, 47017, 94034, 329119, 658238, 1457527, 2915054, 10202689, 20405378]

約数ペア:

[(1, 20405378), (2, 10202689), (7, 2915054), (14, 1457527), (31, 658238), (62, 329119), (217, 94034), (434, 47017)]