28160703

素因数分解:

$3^4\times {\mathrm{67}}^1\times {\mathrm{5189}}^1$

素因数の和:5268

約数の個数: 20

約数和(自身を含む): 42703320

約数和(自身を除く): 14542617

約数列:

[1, 3, 9, 27, 67, 81, 201, 603, 1809, 5189, 5427, 15567, 46701, 140103, 347663, 420309, 1042989, 3128967, 9386901, 28160703]

約数ペア:

[(1, 28160703), (3, 9386901), (9, 3128967), (27, 1042989), (67, 420309), (81, 347663), (201, 140103), (603, 46701), (1809, 15567), (5189, 5427)]