20651026

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1\times {\mathrm{199}}^1$

素因数の和:354

約数の個数: 32

約数和(自身を含む): 34992000

約数和(自身を除く): 14340974

約数列:

[1, 2, 11, 22, 53, 89, 106, 178, 199, 398, 583, 979, 1166, 1958, 2189, 4378, 4717, 9434, 10547, 17711, 21094, 35422, 51887, 103774, 116017, 194821, 232034, 389642, 938683, 1877366, 10325513, 20651026]

約数ペア:

[(1, 20651026), (2, 10325513), (11, 1877366), (22, 938683), (53, 389642), (89, 232034), (106, 194821), (178, 116017), (199, 103774), (398, 51887), (583, 35422), (979, 21094), (1166, 17711), (1958, 10547), (2189, 9434), (4378, 4717)]