20899857

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{17117}}^1$

素因数の和:17168

約数の個数: 16

約数和(自身を含む): 31223232

約数和(自身を除く): 10323375

約数列:

[1, 3, 11, 33, 37, 111, 407, 1221, 17117, 51351, 188287, 564861, 633329, 1899987, 6966619, 20899857]

約数ペア:

[(1, 20899857), (3, 6966619), (11, 1899987), (33, 633329), (37, 564861), (111, 188287), (407, 51351), (1221, 17117)]