21566886

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{127}}^1$

素因数の和:257

約数の個数: 64

約数和(自身を含む): 49545216

約数和(自身を除く): 27978330

約数列:

[1, 2, 3, 6, 11, 22, 31, 33, 62, 66, 83, 93, 127, 166, 186, 249, 254, 341, 381, 498, 682, 762, 913, 1023, 1397, 1826, 2046, 2573, 2739, 2794, 3937, 4191, 5146, 5478, 7719, 7874, 8382, 10541, 11811, 15438, 21082, 23622, 28303, 31623, 43307, 56606, 63246, 84909, 86614, 115951, 129921, 169818, 231902, 259842, 326771, 347853, 653542, 695706, 980313, 1960626, 3594481, 7188962, 10783443, 21566886]

約数ペア:

[(1, 21566886), (2, 10783443), (3, 7188962), (6, 3594481), (11, 1960626), (22, 980313), (31, 695706), (33, 653542), (62, 347853), (66, 326771), (83, 259842), (93, 231902), (127, 169818), (166, 129921), (186, 115951), (249, 86614), (254, 84909), (341, 63246), (381, 56606), (498, 43307), (682, 31623), (762, 28303), (913, 23622), (1023, 21082), (1397, 15438), (1826, 11811), (2046, 10541), (2573, 8382), (2739, 7874), (2794, 7719), (3937, 5478), (4191, 5146)]