18555568

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{68219}}^1$

素因数の和:68244

約数の個数: 20

約数和(自身を含む): 38066760

約数和(自身を除く): 19511192

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 68219, 136438, 272876, 545752, 1091504, 1159723, 2319446, 4638892, 9277784, 18555568]

約数ペア:

[(1, 18555568), (2, 9277784), (4, 4638892), (8, 2319446), (16, 1159723), (17, 1091504), (34, 545752), (68, 272876), (136, 136438), (272, 68219)]