19423257

素因数分解:

$3^1\times 7^2\times {\mathrm{71}}^1\times {\mathrm{1861}}^1$

素因数の和:1949

約数の個数: 24

約数和(自身を含む): 30566592

約数和(自身を除く): 11143335

約数列:

[1, 3, 7, 21, 49, 71, 147, 213, 497, 1491, 1861, 3479, 5583, 10437, 13027, 39081, 91189, 132131, 273567, 396393, 924917, 2774751, 6474419, 19423257]

約数ペア:

[(1, 19423257), (3, 6474419), (7, 2774751), (21, 924917), (49, 396393), (71, 273567), (147, 132131), (213, 91189), (497, 39081), (1491, 13027), (1861, 10437), (3479, 5583)]