20577963

素因数分解:

$3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{20849}}^1$

素因数の和:20906

約数の個数: 16

約数和(自身を含む): 32025600

約数和(自身を除く): 11447637

約数列:

[1, 3, 7, 21, 47, 141, 329, 987, 20849, 62547, 145943, 437829, 979903, 2939709, 6859321, 20577963]

約数ペア:

[(1, 20577963), (3, 6859321), (7, 2939709), (21, 979903), (47, 437829), (141, 145943), (329, 62547), (987, 20849)]