21305354

素因数分解:

$2^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{17099}}^1$

素因数の和:17197

約数の個数: 16

約数和(自身を含む): 36936000

約数和(自身を除く): 15630646

約数列:

[1, 2, 7, 14, 89, 178, 623, 1246, 17099, 34198, 119693, 239386, 1521811, 3043622, 10652677, 21305354]

約数ペア:

[(1, 21305354), (2, 10652677), (7, 3043622), (14, 1521811), (89, 239386), (178, 119693), (623, 34198), (1246, 17099)]