20798477

素因数分解:

$7^1\times {\mathrm{37}}^1\times {\mathrm{131}}^1\times {\mathrm{613}}^1$

素因数の和:788

約数の個数: 16

約数和(自身を含む): 24638592

約数和(自身を除く): 3840115

約数列:

[1, 7, 37, 131, 259, 613, 917, 4291, 4847, 22681, 33929, 80303, 158767, 562121, 2971211, 20798477]

約数ペア:

[(1, 20798477), (7, 2971211), (37, 562121), (131, 158767), (259, 80303), (613, 33929), (917, 22681), (4291, 4847)]