64196991

素因数分解:

$3^2\times {\mathrm{19}}^2\times {\mathrm{19759}}^1$

素因数の和:19803

約数の個数: 18

約数和(自身を含む): 97871280

約数和(自身を除く): 33674289

約数列:

[1, 3, 9, 19, 57, 171, 361, 1083, 3249, 19759, 59277, 177831, 375421, 1126263, 3378789, 7132999, 21398997, 64196991]

約数ペア:

[(1, 64196991), (3, 21398997), (9, 7132999), (19, 3378789), (57, 1126263), (171, 375421), (361, 177831), (1083, 59277), (3249, 19759)]