20724574

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{11897}}^1$

素因数の和:11979

約数の個数: 16

約数和(自身を含む): 33980688

約数和(自身を除く): 13256114

約数列:

[1, 2, 13, 26, 67, 134, 871, 1742, 11897, 23794, 154661, 309322, 797099, 1594198, 10362287, 20724574]

約数ペア:

[(1, 20724574), (2, 10362287), (13, 1594198), (26, 797099), (67, 309322), (134, 154661), (871, 23794), (1742, 11897)]