19985793

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{311}}^1\times {\mathrm{691}}^1$

素因数の和:1036

約数の個数: 16

約数和(自身を含む): 27635712

約数和(自身を除く): 7649919

約数列:

[1, 3, 31, 93, 311, 691, 933, 2073, 9641, 21421, 28923, 64263, 214901, 644703, 6661931, 19985793]

約数ペア:

[(1, 19985793), (3, 6661931), (31, 644703), (93, 214901), (311, 64263), (691, 28923), (933, 21421), (2073, 9641)]