20721362

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{5399}}^1$

素因数の和:5521

約数の個数: 16

約数和(自身を含む): 33048000

約数和(自身を除く): 12326638

約数列:

[1, 2, 19, 38, 101, 202, 1919, 3838, 5399, 10798, 102581, 205162, 545299, 1090598, 10360681, 20721362]

約数ペア:

[(1, 20721362), (2, 10360681), (19, 1090598), (38, 545299), (101, 205162), (202, 102581), (1919, 10798), (3838, 5399)]