81157569

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{79}}^1\times {\mathrm{269}}^1$

素因数の和:437

約数の個数: 32

約数和(自身を含む): 117504000

約数和(自身を除く): 36346431

約数列:

[1, 3, 19, 57, 67, 79, 201, 237, 269, 807, 1273, 1501, 3819, 4503, 5111, 5293, 15333, 15879, 18023, 21251, 54069, 63753, 100567, 301701, 342437, 403769, 1027311, 1211307, 1423817, 4271451, 27052523, 81157569]

約数ペア:

[(1, 81157569), (3, 27052523), (19, 4271451), (57, 1423817), (67, 1211307), (79, 1027311), (201, 403769), (237, 342437), (269, 301701), (807, 100567), (1273, 63753), (1501, 54069), (3819, 21251), (4503, 18023), (5111, 15879), (5293, 15333)]