28709019

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{191}}^1\times {\mathrm{293}}^1$

素因数の和:512

約数の個数: 32

約数和(自身を含む): 45158400

約数和(自身を除く): 16449381

約数列:

[1, 3, 9, 19, 27, 57, 171, 191, 293, 513, 573, 879, 1719, 2637, 3629, 5157, 5567, 7911, 10887, 16701, 32661, 50103, 55963, 97983, 150309, 167889, 503667, 1063297, 1511001, 3189891, 9569673, 28709019]

約数ペア:

[(1, 28709019), (3, 9569673), (9, 3189891), (19, 1511001), (27, 1063297), (57, 503667), (171, 167889), (191, 150309), (293, 97983), (513, 55963), (573, 50103), (879, 32661), (1719, 16701), (2637, 10887), (3629, 7911), (5157, 5567)]