19905495

素因数分解:

$3^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{9547}}^1$

素因数の和:9694

約数の個数: 16

約数和(自身を含む): 32081280

約数和(自身を除く): 12175785

約数列:

[1, 3, 5, 15, 139, 417, 695, 2085, 9547, 28641, 47735, 143205, 1327033, 3981099, 6635165, 19905495]

約数ペア:

[(1, 19905495), (3, 6635165), (5, 3981099), (15, 1327033), (139, 143205), (417, 47735), (695, 28641), (2085, 9547)]