21000663442

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{86779601}}^1$

素因数の和:86779625

約数の個数: 12

約数和(自身を含む): 34625061198

約数和(自身を除く): 13624397756

約数列:

[1, 2, 11, 22, 121, 242, 86779601, 173559202, 954575611, 1909151222, 10500331721, 21000663442]

約数ペア:

[(1, 21000663442), (2, 10500331721), (11, 1909151222), (22, 954575611), (121, 173559202), (242, 86779601)]