397171418

素因数分解:

$2^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{223381}}^1$

素因数の和:223517

約数の個数: 16

約数和(自身を含む): 686229504

約数和(自身を除く): 289058086

約数列:

[1, 2, 7, 14, 127, 254, 889, 1778, 223381, 446762, 1563667, 3127334, 28369387, 56738774, 198585709, 397171418]

約数ペア:

[(1, 397171418), (2, 198585709), (7, 56738774), (14, 28369387), (127, 3127334), (254, 1563667), (889, 446762), (1778, 223381)]