21003012

素因数分解:

$2^2\times 3^2\times {\mathrm{583417}}^1$

素因数の和:583427

約数の個数: 18

約数和(自身を含む): 53091038

約数和(自身を除く): 32088026

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 583417, 1166834, 1750251, 2333668, 3500502, 5250753, 7001004, 10501506, 21003012]

約数ペア:

[(1, 21003012), (2, 10501506), (3, 7001004), (4, 5250753), (6, 3500502), (9, 2333668), (12, 1750251), (18, 1166834), (36, 583417)]