21328299

素因数分解:

$3^3\times {\mathrm{139}}^1\times {\mathrm{5683}}^1$

素因数の和:5831

約数の個数: 16

約数和(自身を含む): 31830400

約数和(自身を除く): 10502101

約数列:

[1, 3, 9, 27, 139, 417, 1251, 3753, 5683, 17049, 51147, 153441, 789937, 2369811, 7109433, 21328299]

約数ペア:

[(1, 21328299), (3, 7109433), (9, 2369811), (27, 789937), (139, 153441), (417, 51147), (1251, 17049), (3753, 5683)]