20896834

素因数分解:

$2^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{127}}^1$

素因数の和:239

約数の個数: 48

約数和(自身を含む): 38873088

約数和(自身を除く): 17976254

約数列:

[1, 2, 7, 14, 23, 46, 49, 73, 98, 127, 146, 161, 254, 322, 511, 889, 1022, 1127, 1679, 1778, 2254, 2921, 3358, 3577, 5842, 6223, 7154, 9271, 11753, 12446, 18542, 20447, 23506, 40894, 64897, 82271, 129794, 143129, 164542, 213233, 286258, 426466, 454279, 908558, 1492631, 2985262, 10448417, 20896834]

約数ペア:

[(1, 20896834), (2, 10448417), (7, 2985262), (14, 1492631), (23, 908558), (46, 454279), (49, 426466), (73, 286258), (98, 213233), (127, 164542), (146, 143129), (161, 129794), (254, 82271), (322, 64897), (511, 40894), (889, 23506), (1022, 20447), (1127, 18542), (1679, 12446), (1778, 11753), (2254, 9271), (2921, 7154), (3358, 6223), (3577, 5842)]