28761711

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{20269}}^1$

素因数の和:20326

約数の個数: 16

約数和(自身を含む): 42810240

約数和(自身を除く): 14048529

約数列:

[1, 3, 11, 33, 43, 129, 473, 1419, 20269, 60807, 222959, 668877, 871567, 2614701, 9587237, 28761711]

約数ペア:

[(1, 28761711), (3, 9587237), (11, 2614701), (33, 871567), (43, 668877), (129, 222959), (473, 60807), (1419, 20269)]