19816923

素因数分解:

$3^1\times 7^2\times {\mathrm{113}}^1\times {\mathrm{1193}}^1$

素因数の和:1323

約数の個数: 24

約数和(自身を含む): 31034448

約数和(自身を除く): 11217525

約数列:

[1, 3, 7, 21, 49, 113, 147, 339, 791, 1193, 2373, 3579, 5537, 8351, 16611, 25053, 58457, 134809, 175371, 404427, 943663, 2830989, 6605641, 19816923]

約数ペア:

[(1, 19816923), (3, 6605641), (7, 2830989), (21, 943663), (49, 404427), (113, 175371), (147, 134809), (339, 58457), (791, 25053), (1193, 16611), (2373, 8351), (3579, 5537)]