2505781989

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{761}}^1\times {\mathrm{15907}}^1$

素因数の和:16697

約数の個数: 24

約数和(自身を含む): 3782031552

約数和(自身を除く): 1276249563

約数列:

[1, 3, 9, 23, 69, 207, 761, 2283, 6849, 15907, 17503, 47721, 52509, 143163, 157527, 365861, 1097583, 3292749, 12105227, 36315681, 108947043, 278420221, 835260663, 2505781989]

約数ペア:

[(1, 2505781989), (3, 835260663), (9, 278420221), (23, 108947043), (69, 36315681), (207, 12105227), (761, 3292749), (2283, 1097583), (6849, 365861), (15907, 157527), (17503, 143163), (47721, 52509)]