21203171

素因数分解:

${\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{1949}}^1$

素因数の和:2026

約数の個数: 16

約数和(自身を含む): 24710400

約数和(自身を除く): 3507229

約数列:

[1, 11, 23, 43, 253, 473, 989, 1949, 10879, 21439, 44827, 83807, 493097, 921877, 1927561, 21203171]

約数ペア:

[(1, 21203171), (11, 1927561), (23, 921877), (43, 493097), (253, 83807), (473, 44827), (989, 21439), (1949, 10879)]