66797217

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{43403}}^1$

素因数の和:43434

約数の個数: 20

約数和(自身を含む): 105037680

約数和(自身を除く): 38240463

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 513, 1539, 43403, 130209, 390627, 824657, 1171881, 2473971, 3515643, 7421913, 22265739, 66797217]

約数ペア:

[(1, 66797217), (3, 22265739), (9, 7421913), (19, 3515643), (27, 2473971), (57, 1171881), (81, 824657), (171, 390627), (513, 130209), (1539, 43403)]