27720459

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{71}}^2$

素因数の和:208

約数の個数: 36

約数和(自身を含む): 44667168

約数和(自身を除く): 16946709

約数列:

[1, 3, 9, 13, 39, 47, 71, 117, 141, 213, 423, 611, 639, 923, 1833, 2769, 3337, 5041, 5499, 8307, 10011, 15123, 30033, 43381, 45369, 65533, 130143, 196599, 236927, 390429, 589797, 710781, 2132343, 3080051, 9240153, 27720459]

約数ペア:

[(1, 27720459), (3, 9240153), (9, 3080051), (13, 2132343), (39, 710781), (47, 589797), (71, 390429), (117, 236927), (141, 196599), (213, 130143), (423, 65533), (611, 45369), (639, 43381), (923, 30033), (1833, 15123), (2769, 10011), (3337, 8307), (5041, 5499)]