20996206

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{19477}}^1$

素因数の和:19504

約数の個数: 24

約数和(自身を含む): 39968856

約数和(自身を除く): 18972650

約数列:

[1, 2, 7, 11, 14, 22, 49, 77, 98, 154, 539, 1078, 19477, 38954, 136339, 214247, 272678, 428494, 954373, 1499729, 1908746, 2999458, 10498103, 20996206]

約数ペア:

[(1, 20996206), (2, 10498103), (7, 2999458), (11, 1908746), (14, 1499729), (22, 954373), (49, 428494), (77, 272678), (98, 214247), (154, 136339), (539, 38954), (1078, 19477)]