19997222

素因数分解:

$2^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{21319}}^1$

素因数の和:21395

約数の個数: 16

約数和(自身を含む): 34794240

約数和(自身を除く): 14797018

約数列:

[1, 2, 7, 14, 67, 134, 469, 938, 21319, 42638, 149233, 298466, 1428373, 2856746, 9998611, 19997222]

約数ペア:

[(1, 19997222), (2, 9998611), (7, 2856746), (14, 1428373), (67, 298466), (134, 149233), (469, 42638), (938, 21319)]