20667639

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{6373}}^1$

素因数の和:6446

約数の個数: 16

約数和(自身を含む): 29371392

約数和(自身を除く): 8703753

約数列:

[1, 3, 23, 47, 69, 141, 1081, 3243, 6373, 19119, 146579, 299531, 439737, 898593, 6889213, 20667639]

約数ペア:

[(1, 20667639), (3, 6889213), (23, 898593), (47, 439737), (69, 299531), (141, 146579), (1081, 19119), (3243, 6373)]