28765972

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{3881}}^1$

素因数の和:4011

約数の個数: 24

約数和(自身を含む): 53804520

約数和(自身を除く): 25038548

約数列:

[1, 2, 4, 17, 34, 68, 109, 218, 436, 1853, 3706, 3881, 7412, 7762, 15524, 65977, 131954, 263908, 423029, 846058, 1692116, 7191493, 14382986, 28765972]

約数ペア:

[(1, 28765972), (2, 14382986), (4, 7191493), (17, 1692116), (34, 846058), (68, 423029), (109, 263908), (218, 131954), (436, 65977), (1853, 15524), (3706, 7762), (3881, 7412)]