21987144

素因数分解:

$2^3\times 3^2\times {\mathrm{305377}}^1$

素因数の和:305389

約数の個数: 24

約数和(自身を含む): 59548710

約数和(自身を除く): 37561566

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 305377, 610754, 916131, 1221508, 1832262, 2443016, 2748393, 3664524, 5496786, 7329048, 10993572, 21987144]

約数ペア:

[(1, 21987144), (2, 10993572), (3, 7329048), (4, 5496786), (6, 3664524), (8, 2748393), (9, 2443016), (12, 1832262), (18, 1221508), (24, 916131), (36, 610754), (72, 305377)]