21520638

素因数分解:

$2^1\times 3^2\times {\mathrm{1021}}^1\times {\mathrm{1171}}^1$

素因数の和:2200

約数の個数: 24

約数和(自身を含む): 46713576

約数和(自身を除く): 25192938

約数列:

[1, 2, 3, 6, 9, 18, 1021, 1171, 2042, 2342, 3063, 3513, 6126, 7026, 9189, 10539, 18378, 21078, 1195591, 2391182, 3586773, 7173546, 10760319, 21520638]

約数ペア:

[(1, 21520638), (2, 10760319), (3, 7173546), (6, 3586773), (9, 2391182), (18, 1195591), (1021, 21078), (1171, 18378), (2042, 10539), (2342, 9189), (3063, 7026), (3513, 6126)]