20764765

素因数分解:

$5^1\times 7^1\times {\mathrm{151}}^1\times {\mathrm{3929}}^1$

素因数の和:4092

約数の個数: 16

約数和(自身を含む): 28673280

約数和(自身を除く): 7908515

約数列:

[1, 5, 7, 35, 151, 755, 1057, 3929, 5285, 19645, 27503, 137515, 593279, 2966395, 4152953, 20764765]

約数ペア:

[(1, 20764765), (5, 4152953), (7, 2966395), (35, 593279), (151, 137515), (755, 27503), (1057, 19645), (3929, 5285)]