20988735

素因数分解:

$3^1\times 5^1\times {\mathrm{967}}^1\times {\mathrm{1447}}^1$

素因数の和:2422

約数の個数: 16

約数和(自身を含む): 33639936

約数和(自身を除く): 12651201

約数列:

[1, 3, 5, 15, 967, 1447, 2901, 4341, 4835, 7235, 14505, 21705, 1399249, 4197747, 6996245, 20988735]

約数ペア:

[(1, 20988735), (3, 6996245), (5, 4197747), (15, 1399249), (967, 21705), (1447, 14505), (2901, 7235), (4341, 4835)]