21153699

素因数分解:

$3^2\times 7^1\times {\mathrm{467}}^1\times {\mathrm{719}}^1$

素因数の和:1199

約数の個数: 24

約数和(自身を含む): 35043840

約数和(自身を除く): 13890141

約数列:

[1, 3, 7, 9, 21, 63, 467, 719, 1401, 2157, 3269, 4203, 5033, 6471, 9807, 15099, 29421, 45297, 335773, 1007319, 2350411, 3021957, 7051233, 21153699]

約数ペア:

[(1, 21153699), (3, 7051233), (7, 3021957), (9, 2350411), (21, 1007319), (63, 335773), (467, 45297), (719, 29421), (1401, 15099), (2157, 9807), (3269, 6471), (4203, 5033)]