16778881

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{181}}^1$

素因数の和:265

約数の個数: 32

約数和(自身を含む): 22014720

約数和(自身を除く): 5235839

約数列:

[1, 7, 17, 19, 41, 119, 133, 181, 287, 323, 697, 779, 1267, 2261, 3077, 3439, 4879, 5453, 7421, 13243, 21539, 24073, 51947, 58463, 92701, 126157, 140999, 409241, 883099, 986993, 2396983, 16778881]

約数ペア:

[(1, 16778881), (7, 2396983), (17, 986993), (19, 883099), (41, 409241), (119, 140999), (133, 126157), (181, 92701), (287, 58463), (323, 51947), (697, 24073), (779, 21539), (1267, 13243), (2261, 7421), (3077, 5453), (3439, 4879)]