81425001

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1\times {\mathrm{563}}^1$

素因数の和:741

約数の個数: 32

約数和(自身を含む): 127346688

約数和(自身を除く): 45921687

約数列:

[1, 3, 7, 21, 71, 97, 213, 291, 497, 563, 679, 1491, 1689, 2037, 3941, 6887, 11823, 20661, 39973, 48209, 54611, 119919, 144627, 163833, 279811, 382277, 839433, 1146831, 3877381, 11632143, 27141667, 81425001]

約数ペア:

[(1, 81425001), (3, 27141667), (7, 11632143), (21, 3877381), (71, 1146831), (97, 839433), (213, 382277), (291, 279811), (497, 163833), (563, 144627), (679, 119919), (1491, 54611), (1689, 48209), (2037, 39973), (3941, 20661), (6887, 11823)]