20999726

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{56149}}^1$

素因数の和:56179

約数の個数: 16

約数和(自身を含む): 36385200

約数和(自身を除く): 15385474

約数列:

[1, 2, 11, 17, 22, 34, 187, 374, 56149, 112298, 617639, 954533, 1235278, 1909066, 10499863, 20999726]

約数ペア:

[(1, 20999726), (2, 10499863), (11, 1909066), (17, 1235278), (22, 954533), (34, 617639), (187, 112298), (374, 56149)]