20778373

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{449}}^1\times {\mathrm{601}}^1$

素因数の和:1068

約数の個数: 16

約数和(自身を含む): 26006400

約数和(自身を除く): 5228027

約数列:

[1, 7, 11, 77, 449, 601, 3143, 4207, 4939, 6611, 34573, 46277, 269849, 1888943, 2968339, 20778373]

約数ペア:

[(1, 20778373), (7, 2968339), (11, 1888943), (77, 269849), (449, 46277), (601, 34573), (3143, 6611), (4207, 4939)]