20387722

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{53}}^2\times {\mathrm{191}}^1$

素因数の和:318

約数の個数: 24

約数和(自身を含む): 32981760

約数和(自身を除く): 12594038

約数列:

[1, 2, 19, 38, 53, 106, 191, 382, 1007, 2014, 2809, 3629, 5618, 7258, 10123, 20246, 53371, 106742, 192337, 384674, 536519, 1073038, 10193861, 20387722]

約数ペア:

[(1, 20387722), (2, 10193861), (19, 1073038), (38, 536519), (53, 384674), (106, 192337), (191, 106742), (382, 53371), (1007, 20246), (2014, 10123), (2809, 7258), (3629, 5618)]