220156587

素因数分解:

$3^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{83}}^1\times {\mathrm{593}}^1$

素因数の和:760

約数の個数: 48

約数和(自身を含む): 373621248

約数和(自身を除く): 153464661

約数列:

[1, 3, 7, 9, 21, 63, 71, 83, 213, 249, 497, 581, 593, 639, 747, 1491, 1743, 1779, 4151, 4473, 5229, 5337, 5893, 12453, 17679, 37359, 41251, 42103, 49219, 53037, 123753, 126309, 147657, 294721, 344533, 371259, 378927, 442971, 884163, 1033599, 2652489, 3100797, 3494549, 10483647, 24461843, 31450941, 73385529, 220156587]

約数ペア:

[(1, 220156587), (3, 73385529), (7, 31450941), (9, 24461843), (21, 10483647), (63, 3494549), (71, 3100797), (83, 2652489), (213, 1033599), (249, 884163), (497, 442971), (581, 378927), (593, 371259), (639, 344533), (747, 294721), (1491, 147657), (1743, 126309), (1779, 123753), (4151, 53037), (4473, 49219), (5229, 42103), (5337, 41251), (5893, 37359), (12453, 17679)]