21735272

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{208993}}^1$

素因数の和:209012

約数の個数: 16

約数和(自身を含む): 43888740

約数和(自身を除く): 22153468

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 208993, 417986, 835972, 1671944, 2716909, 5433818, 10867636, 21735272]

約数ペア:

[(1, 21735272), (2, 10867636), (4, 5433818), (8, 2716909), (13, 1671944), (26, 835972), (52, 417986), (104, 208993)]