20986378

素因数分解:

$2^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{16843}}^1$

素因数の和:16941

約数の個数: 16

約数和(自身を含む): 36383040

約数和(自身を除く): 15396662

約数列:

[1, 2, 7, 14, 89, 178, 623, 1246, 16843, 33686, 117901, 235802, 1499027, 2998054, 10493189, 20986378]

約数ペア:

[(1, 20986378), (2, 10493189), (7, 2998054), (14, 1499027), (89, 235802), (178, 117901), (623, 33686), (1246, 16843)]