20080827

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{2909}}^1$

素因数の和:2987

約数の個数: 24

約数和(自身を含む): 31777200

約数和(自身を除く): 11696373

約数列:

[1, 3, 9, 13, 39, 59, 117, 177, 531, 767, 2301, 2909, 6903, 8727, 26181, 37817, 113451, 171631, 340353, 514893, 1544679, 2231203, 6693609, 20080827]

約数ペア:

[(1, 20080827), (3, 6693609), (9, 2231203), (13, 1544679), (39, 514893), (59, 340353), (117, 171631), (177, 113451), (531, 37817), (767, 26181), (2301, 8727), (2909, 6903)]