20451486

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{347}}^1$

素因数の和:429

約数の個数: 64

約数和(自身を含む): 48107520

約数和(自身を除く): 27656034

約数列:

[1, 2, 3, 6, 11, 19, 22, 33, 38, 47, 57, 66, 94, 114, 141, 209, 282, 347, 418, 517, 627, 694, 893, 1034, 1041, 1254, 1551, 1786, 2082, 2679, 3102, 3817, 5358, 6593, 7634, 9823, 11451, 13186, 16309, 19646, 19779, 22902, 29469, 32618, 39558, 48927, 58938, 72523, 97854, 145046, 179399, 217569, 309871, 358798, 435138, 538197, 619742, 929613, 1076394, 1859226, 3408581, 6817162, 10225743, 20451486]

約数ペア:

[(1, 20451486), (2, 10225743), (3, 6817162), (6, 3408581), (11, 1859226), (19, 1076394), (22, 929613), (33, 619742), (38, 538197), (47, 435138), (57, 358798), (66, 309871), (94, 217569), (114, 179399), (141, 145046), (209, 97854), (282, 72523), (347, 58938), (418, 48927), (517, 39558), (627, 32618), (694, 29469), (893, 22902), (1034, 19779), (1041, 19646), (1254, 16309), (1551, 13186), (1786, 11451), (2082, 9823), (2679, 7634), (3102, 6593), (3817, 5358)]