20668565547

素因数分解:

$3^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{883}}^1\times {\mathrm{5233}}^1$

素因数の和:6200

約数の個数: 48

約数和(自身を含む): 34645897728

約数和(自身を除く): 13977332181

約数列:

[1, 3, 7, 9, 21, 63, 71, 213, 497, 639, 883, 1491, 2649, 4473, 5233, 6181, 7947, 15699, 18543, 36631, 47097, 55629, 62693, 109893, 188079, 329679, 371543, 438851, 564237, 1114629, 1316553, 2600801, 3343887, 3949659, 4620739, 7802403, 13862217, 23407209, 32345173, 41586651, 97035519, 291106557, 328072469, 984217407, 2296507283, 2952652221, 6889521849, 20668565547]

約数ペア:

[(1, 20668565547), (3, 6889521849), (7, 2952652221), (9, 2296507283), (21, 984217407), (63, 328072469), (71, 291106557), (213, 97035519), (497, 41586651), (639, 32345173), (883, 23407209), (1491, 13862217), (2649, 7802403), (4473, 4620739), (5233, 3949659), (6181, 3343887), (7947, 2600801), (15699, 1316553), (18543, 1114629), (36631, 564237), (47097, 438851), (55629, 371543), (62693, 329679), (109893, 188079)]