20991606

素因数分解:

$2^1\times 3^1\times {\mathrm{103}}^1\times {\mathrm{33967}}^1$

素因数の和:34075

約数の個数: 16

約数和(自身を含む): 42392064

約数和(自身を除く): 21400458

約数列:

[1, 2, 3, 6, 103, 206, 309, 618, 33967, 67934, 101901, 203802, 3498601, 6997202, 10495803, 20991606]

約数ペア:

[(1, 20991606), (2, 10495803), (3, 6997202), (6, 3498601), (103, 203802), (206, 101901), (309, 67934), (618, 33967)]