20999506

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{883}}^1$

素因数の和:966

約数の個数: 32

約数和(自身を含む): 36661248

約数和(自身を除く): 15661742

約数列:

[1, 2, 11, 22, 23, 46, 47, 94, 253, 506, 517, 883, 1034, 1081, 1766, 2162, 9713, 11891, 19426, 20309, 23782, 40618, 41501, 83002, 223399, 446798, 456511, 913022, 954523, 1909046, 10499753, 20999506]

約数ペア:

[(1, 20999506), (2, 10499753), (11, 1909046), (22, 954523), (23, 913022), (46, 456511), (47, 446798), (94, 223399), (253, 83002), (506, 41501), (517, 40618), (883, 23782), (1034, 20309), (1081, 19426), (1766, 11891), (2162, 9713)]