20199394

素因数分解:

$2^1\times {\mathrm{19}}^2\times {\mathrm{101}}^1\times {\mathrm{277}}^1$

素因数の和:418

約数の個数: 24

約数和(自身を含む): 32410908

約数和(自身を除く): 12211514

約数列:

[1, 2, 19, 38, 101, 202, 277, 361, 554, 722, 1919, 3838, 5263, 10526, 27977, 36461, 55954, 72922, 99997, 199994, 531563, 1063126, 10099697, 20199394]

約数ペア:

[(1, 20199394), (2, 10099697), (19, 1063126), (38, 531563), (101, 199994), (202, 99997), (277, 72922), (361, 55954), (554, 36461), (722, 27977), (1919, 10526), (3838, 5263)]