19700891

素因数分解:

$7^3\times {\mathrm{19}}^1\times {\mathrm{3023}}^1$

素因数の和:3063

約数の個数: 16

約数和(自身を含む): 24192000

約数和(自身を除く): 4491109

約数列:

[1, 7, 19, 49, 133, 343, 931, 3023, 6517, 21161, 57437, 148127, 402059, 1036889, 2814413, 19700891]

約数ペア:

[(1, 19700891), (7, 2814413), (19, 1036889), (49, 402059), (133, 148127), (343, 57437), (931, 21161), (3023, 6517)]