20942817

素因数分解:

$3^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{16903}}^1$

素因数の和:16972

約数の個数: 16

約数和(自身を含む): 32455680

約数和(自身を除く): 11512863

約数列:

[1, 3, 7, 21, 59, 177, 413, 1239, 16903, 50709, 118321, 354963, 997277, 2991831, 6980939, 20942817]

約数ペア:

[(1, 20942817), (3, 6980939), (7, 2991831), (21, 997277), (59, 354963), (177, 118321), (413, 50709), (1239, 16903)]