20999504

素因数分解:

$2^4\times {\mathrm{109}}^1\times {\mathrm{12041}}^1$

素因数の和:12158

約数の個数: 20

約数和(自身を含む): 41063220

約数和(自身を除く): 20063716

約数列:

[1, 2, 4, 8, 16, 109, 218, 436, 872, 1744, 12041, 24082, 48164, 96328, 192656, 1312469, 2624938, 5249876, 10499752, 20999504]

約数ペア:

[(1, 20999504), (2, 10499752), (4, 5249876), (8, 2624938), (16, 1312469), (109, 192656), (218, 96328), (436, 48164), (872, 24082), (1744, 12041)]