21864635

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{421}}^1$

素因数の和:503

約数の個数: 32

約数和(自身を含む): 30627072

約数和(自身を除く): 8762437

約数列:

[1, 5, 13, 17, 47, 65, 85, 221, 235, 421, 611, 799, 1105, 2105, 3055, 3995, 5473, 7157, 10387, 19787, 27365, 35785, 51935, 93041, 98935, 257231, 336379, 465205, 1286155, 1681895, 4372927, 21864635]

約数ペア:

[(1, 21864635), (5, 4372927), (13, 1681895), (17, 1286155), (47, 465205), (65, 336379), (85, 257231), (221, 98935), (235, 93041), (421, 51935), (611, 35785), (799, 27365), (1105, 19787), (2105, 10387), (3055, 7157), (3995, 5473)]