12871221

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{4021}}^1$

素因数の和:4132

約数の個数: 16

約数和(自身を含む): 18919488

約数和(自身を除く): 6048267

約数列:

[1, 3, 11, 33, 97, 291, 1067, 3201, 4021, 12063, 44231, 132693, 390037, 1170111, 4290407, 12871221]

約数ペア:

[(1, 12871221), (3, 4290407), (11, 1170111), (33, 390037), (97, 132693), (291, 44231), (1067, 12063), (3201, 4021)]