28661427

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{138461}}^1$

素因数の和:138490

約数の個数: 12

約数和(自身を含む): 43200144

約数和(自身を除く): 14538717

約数列:

[1, 3, 9, 23, 69, 207, 138461, 415383, 1246149, 3184603, 9553809, 28661427]

約数ペア:

[(1, 28661427), (3, 9553809), (9, 3184603), (23, 1246149), (69, 415383), (207, 138461)]