20805858

素因数分解:

$2^1\times 3^2\times {\mathrm{17}}^1\times {\mathrm{67993}}^1$

素因数の和:68018

約数の個数: 24

約数和(自身を含む): 47731788

約数和(自身を除く): 26925930

約数列:

[1, 2, 3, 6, 9, 17, 18, 34, 51, 102, 153, 306, 67993, 135986, 203979, 407958, 611937, 1155881, 1223874, 2311762, 3467643, 6935286, 10402929, 20805858]

約数ペア:

[(1, 20805858), (2, 10402929), (3, 6935286), (6, 3467643), (9, 2311762), (17, 1223874), (18, 1155881), (34, 611937), (51, 407958), (102, 203979), (153, 135986), (306, 67993)]