20889726

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{251}}^1$

素因数の和:377

約数の個数: 64

約数和(自身を含む): 49787136

約数和(自身を除く): 28897410

約数列:

[1, 2, 3, 6, 11, 13, 22, 26, 33, 39, 66, 78, 97, 143, 194, 251, 286, 291, 429, 502, 582, 753, 858, 1067, 1261, 1506, 2134, 2522, 2761, 3201, 3263, 3783, 5522, 6402, 6526, 7566, 8283, 9789, 13871, 16566, 19578, 24347, 27742, 35893, 41613, 48694, 71786, 73041, 83226, 107679, 146082, 215358, 267817, 316511, 535634, 633022, 803451, 949533, 1606902, 1899066, 3481621, 6963242, 10444863, 20889726]

約数ペア:

[(1, 20889726), (2, 10444863), (3, 6963242), (6, 3481621), (11, 1899066), (13, 1606902), (22, 949533), (26, 803451), (33, 633022), (39, 535634), (66, 316511), (78, 267817), (97, 215358), (143, 146082), (194, 107679), (251, 83226), (286, 73041), (291, 71786), (429, 48694), (502, 41613), (582, 35893), (753, 27742), (858, 24347), (1067, 19578), (1261, 16566), (1506, 13871), (2134, 9789), (2522, 8283), (2761, 7566), (3201, 6526), (3263, 6402), (3783, 5522)]