20650828

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{42667}}^1$

素因数の和:42693

約数の個数: 18

約数和(自身を含む): 39723908

約数和(自身を除く): 19073080

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 42667, 85334, 170668, 469337, 938674, 1877348, 5162707, 10325414, 20650828]

約数ペア:

[(1, 20650828), (2, 10325414), (4, 5162707), (11, 1877348), (22, 938674), (44, 469337), (121, 170668), (242, 85334), (484, 42667)]