18968117

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1$

素因数の和:173

約数の個数: 32

約数和(自身を含む): 23950080

約数和(自身を除く): 4981963

約数列:

[1, 7, 29, 41, 43, 53, 203, 287, 301, 371, 1189, 1247, 1537, 1763, 2173, 2279, 8323, 8729, 10759, 12341, 15211, 15953, 51127, 63017, 66091, 93439, 357889, 441119, 462637, 654073, 2709731, 18968117]

約数ペア:

[(1, 18968117), (7, 2709731), (29, 654073), (41, 462637), (43, 441119), (53, 357889), (203, 93439), (287, 66091), (301, 63017), (371, 51127), (1189, 15953), (1247, 15211), (1537, 12341), (1763, 10759), (2173, 8729), (2279, 8323)]