20213331845

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{25109729}}^1$

素因数の和:25109764

約数の個数: 16

約数和(自身を含む): 28926408960

約数和(自身を除く): 8713077115

約数列:

[1, 5, 7, 23, 35, 115, 161, 805, 25109729, 125548645, 175768103, 577523767, 878840515, 2887618835, 4042666369, 20213331845]

約数ペア:

[(1, 20213331845), (5, 4042666369), (7, 2887618835), (23, 878840515), (35, 577523767), (115, 175768103), (161, 125548645), (805, 25109729)]