19990322457

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{55995301}}^1$

素因数の和:55995328

約数の個数: 16

約数和(自身を含む): 32253293952

約数和(自身を除く): 12262971495

約数列:

[1, 3, 7, 17, 21, 51, 119, 357, 55995301, 167985903, 391967107, 951920117, 1175901321, 2855760351, 6663440819, 19990322457]

約数ペア:

[(1, 19990322457), (3, 6663440819), (7, 2855760351), (17, 1175901321), (21, 951920117), (51, 391967107), (119, 167985903), (357, 55995301)]