20627817

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{57781}}^1$

素因数の和:57808

約数の個数: 16

約数和(自身を含む): 33282432

約数和(自身を除く): 12654615

約数列:

[1, 3, 7, 17, 21, 51, 119, 357, 57781, 173343, 404467, 982277, 1213401, 2946831, 6875939, 20627817]

約数ペア:

[(1, 20627817), (3, 6875939), (7, 2946831), (17, 1213401), (21, 982277), (51, 404467), (119, 173343), (357, 57781)]