20628895

素因数分解:

$5^1\times 7^1\times {\mathrm{607}}^1\times {\mathrm{971}}^1$

素因数の和:1590

約数の個数: 16

約数和(自身を含む): 28366848

約数和(自身を除く): 7737953

約数列:

[1, 5, 7, 35, 607, 971, 3035, 4249, 4855, 6797, 21245, 33985, 589397, 2946985, 4125779, 20628895]

約数ペア:

[(1, 20628895), (5, 4125779), (7, 2946985), (35, 589397), (607, 33985), (971, 21245), (3035, 6797), (4249, 4855)]