87128217

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{97787}}^1$

素因数の和:97810

約数の個数: 20

約数和(自身を含む): 141988176

約数和(自身を除く): 54859959

約数列:

[1, 3, 9, 11, 27, 33, 81, 99, 297, 891, 97787, 293361, 880083, 1075657, 2640249, 3226971, 7920747, 9680913, 29042739, 87128217]

約数ペア:

[(1, 87128217), (3, 29042739), (9, 9680913), (11, 7920747), (27, 3226971), (33, 2640249), (81, 1075657), (99, 880083), (297, 293361), (891, 97787)]