19928048

素因数分解:

$2^4\times 7^1\times {\mathrm{177929}}^1$

素因数の和:177944

約数の個数: 20

約数和(自身を含む): 44126640

約数和(自身を除く): 24198592

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 177929, 355858, 711716, 1245503, 1423432, 2491006, 2846864, 4982012, 9964024, 19928048]

約数ペア:

[(1, 19928048), (2, 9964024), (4, 4982012), (7, 2846864), (8, 2491006), (14, 1423432), (16, 1245503), (28, 711716), (56, 355858), (112, 177929)]