17784117

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{16889}}^1$

素因数の和:16914

約数の個数: 20

約数和(自身を含む): 28611660

約数和(自身を除く): 10827543

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 351, 1053, 16889, 50667, 152001, 219557, 456003, 658671, 1368009, 1976013, 5928039, 17784117]

約数ペア:

[(1, 17784117), (3, 5928039), (9, 1976013), (13, 1368009), (27, 658671), (39, 456003), (81, 219557), (117, 152001), (351, 50667), (1053, 16889)]