20797964

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{97}}^1\times {\mathrm{443}}^1$

素因数の和:566

約数の個数: 36

約数和(自身を含む): 40509672

約数和(自身を除く): 19711708

約数列:

[1, 2, 4, 11, 22, 44, 97, 121, 194, 242, 388, 443, 484, 886, 1067, 1772, 2134, 4268, 4873, 9746, 11737, 19492, 23474, 42971, 46948, 53603, 85942, 107206, 171884, 214412, 472681, 945362, 1890724, 5199491, 10398982, 20797964]

約数ペア:

[(1, 20797964), (2, 10398982), (4, 5199491), (11, 1890724), (22, 945362), (44, 472681), (97, 214412), (121, 171884), (194, 107206), (242, 85942), (388, 53603), (443, 46948), (484, 42971), (886, 23474), (1067, 19492), (1772, 11737), (2134, 9746), (4268, 4873)]