19969957

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{1747}}^1$

素因数の和:1848

約数の個数: 16

約数和(自身を含む): 24164352

約数和(自身を除く): 4194395

約数列:

[1, 7, 23, 71, 161, 497, 1633, 1747, 11431, 12229, 40181, 124037, 281267, 868259, 2852851, 19969957]

約数ペア:

[(1, 19969957), (7, 2852851), (23, 868259), (71, 281267), (161, 124037), (497, 40181), (1633, 12229), (1747, 11431)]