20289717

素因数分解:

$3^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{3463}}^1$

素因数の和:3510

約数の個数: 32

約数和(自身を含む): 35471360

約数和(自身を除く): 15181643

約数列:

[1, 3, 7, 9, 21, 27, 31, 63, 93, 189, 217, 279, 651, 837, 1953, 3463, 5859, 10389, 24241, 31167, 72723, 93501, 107353, 218169, 322059, 654507, 751471, 966177, 2254413, 2898531, 6763239, 20289717]

約数ペア:

[(1, 20289717), (3, 6763239), (7, 2898531), (9, 2254413), (21, 966177), (27, 751471), (31, 654507), (63, 322059), (93, 218169), (189, 107353), (217, 93501), (279, 72723), (651, 31167), (837, 24241), (1953, 10389), (3463, 5859)]