81019834

素因数分解:

$2^1\times 7^2\times {\mathrm{61}}^1\times {\mathrm{13553}}^1$

素因数の和:13630

約数の個数: 24

約数和(自身を含む): 143699508

約数和(自身を除く): 62679674

約数列:

[1, 2, 7, 14, 49, 61, 98, 122, 427, 854, 2989, 5978, 13553, 27106, 94871, 189742, 664097, 826733, 1328194, 1653466, 5787131, 11574262, 40509917, 81019834]

約数ペア:

[(1, 81019834), (2, 40509917), (7, 11574262), (14, 5787131), (49, 1653466), (61, 1328194), (98, 826733), (122, 664097), (427, 189742), (854, 94871), (2989, 27106), (5978, 13553)]