21244728

素因数分解:

$2^3\times 3^1\times {\mathrm{347}}^1\times {\mathrm{2551}}^1$

素因数の和:2907

約数の個数: 32

約数和(自身を含む): 53285760

約数和(自身を除く): 32041032

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 347, 694, 1041, 1388, 2082, 2551, 2776, 4164, 5102, 7653, 8328, 10204, 15306, 20408, 30612, 61224, 885197, 1770394, 2655591, 3540788, 5311182, 7081576, 10622364, 21244728]

約数ペア:

[(1, 21244728), (2, 10622364), (3, 7081576), (4, 5311182), (6, 3540788), (8, 2655591), (12, 1770394), (24, 885197), (347, 61224), (694, 30612), (1041, 20408), (1388, 15306), (2082, 10204), (2551, 8328), (2776, 7653), (4164, 5102)]