28041309

素因数分解:

$3^4\times {\mathrm{67}}^1\times {\mathrm{5167}}^1$

素因数の和:5246

約数の個数: 20

約数和(自身を含む): 42522304

約数和(自身を除く): 14480995

約数列:

[1, 3, 9, 27, 67, 81, 201, 603, 1809, 5167, 5427, 15501, 46503, 139509, 346189, 418527, 1038567, 3115701, 9347103, 28041309]

約数ペア:

[(1, 28041309), (3, 9347103), (9, 3115701), (27, 1038567), (67, 418527), (81, 346189), (201, 139509), (603, 46503), (1809, 15501), (5167, 5427)]