642401221

素因数分解:

$7^2\times {\mathrm{11}}^2\times {\mathrm{97}}^1\times {\mathrm{1117}}^1$

素因数の和:1250

約数の個数: 36

約数和(自身を含む): 830604684

約数和(自身を除く): 188203463

約数列:

[1, 7, 11, 49, 77, 97, 121, 539, 679, 847, 1067, 1117, 4753, 5929, 7469, 7819, 11737, 12287, 52283, 54733, 82159, 86009, 108349, 135157, 575113, 602063, 758443, 946099, 1191839, 5309101, 6622693, 8342873, 13110229, 58400111, 91771603, 642401221]

約数ペア:

[(1, 642401221), (7, 91771603), (11, 58400111), (49, 13110229), (77, 8342873), (97, 6622693), (121, 5309101), (539, 1191839), (679, 946099), (847, 758443), (1067, 602063), (1117, 575113), (4753, 135157), (5929, 108349), (7469, 86009), (7819, 82159), (11737, 54733), (12287, 52283)]