21286771

素因数分解:

${\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{1699}}^1$

素因数の和:1794

約数の個数: 16

約数和(自身を含む): 24969600

約数和(自身を除く): 3682829

約数列:

[1, 11, 17, 67, 187, 737, 1139, 1699, 12529, 18689, 28883, 113833, 317713, 1252163, 1935161, 21286771]

約数ペア:

[(1, 21286771), (11, 1935161), (17, 1252163), (67, 317713), (187, 113833), (737, 28883), (1139, 18689), (1699, 12529)]