20390902

素因数分解:

$2^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{27481}}^1$

素因数の和:27543

約数の個数: 16

約数和(自身を含む): 35616672

約数和(自身を除く): 15225770

約数列:

[1, 2, 7, 14, 53, 106, 371, 742, 27481, 54962, 192367, 384734, 1456493, 2912986, 10195451, 20390902]

約数ペア:

[(1, 20390902), (2, 10195451), (7, 2912986), (14, 1456493), (53, 384734), (106, 192367), (371, 54962), (742, 27481)]