20697897

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{3001}}^1$

素因数の和:3045

約数の個数: 24

約数和(自身を含む): 31941280

約数和(自身を除く): 11243383

約数列:

[1, 3, 11, 19, 33, 57, 121, 209, 363, 627, 2299, 3001, 6897, 9003, 33011, 57019, 99033, 171057, 363121, 627209, 1089363, 1881627, 6899299, 20697897]

約数ペア:

[(1, 20697897), (3, 6899299), (11, 1881627), (19, 1089363), (33, 627209), (57, 363121), (121, 171057), (209, 99033), (363, 57019), (627, 33011), (2299, 9003), (3001, 6897)]