19708072

素因数分解:

$2^3\times {\mathrm{97}}^1\times {\mathrm{109}}^1\times {\mathrm{233}}^1$

素因数の和:445

約数の個数: 32

約数和(自身を含む): 37837800

約数和(自身を除く): 18129728

約数列:

[1, 2, 4, 8, 97, 109, 194, 218, 233, 388, 436, 466, 776, 872, 932, 1864, 10573, 21146, 22601, 25397, 42292, 45202, 50794, 84584, 90404, 101588, 180808, 203176, 2463509, 4927018, 9854036, 19708072]

約数ペア:

[(1, 19708072), (2, 9854036), (4, 4927018), (8, 2463509), (97, 203176), (109, 180808), (194, 101588), (218, 90404), (233, 84584), (388, 50794), (436, 45202), (466, 42292), (776, 25397), (872, 22601), (932, 21146), (1864, 10573)]