20881953

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{281}}^1\times {\mathrm{359}}^1$

素因数の和:669

約数の個数: 24

約数和(自身を含む): 31674240

約数和(自身を除く): 10792287

約数列:

[1, 3, 9, 23, 69, 207, 281, 359, 843, 1077, 2529, 3231, 6463, 8257, 19389, 24771, 58167, 74313, 100879, 302637, 907911, 2320217, 6960651, 20881953]

約数ペア:

[(1, 20881953), (3, 6960651), (9, 2320217), (23, 907911), (69, 302637), (207, 100879), (281, 74313), (359, 58167), (843, 24771), (1077, 19389), (2529, 8257), (3231, 6463)]