20657385

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{65579}}^1$

素因数の和:65597

約数の個数: 24

約数和(自身を含む): 40921920

約数和(自身を除く): 20264535

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 65579, 196737, 327895, 459053, 590211, 983685, 1377159, 2295265, 2951055, 4131477, 6885795, 20657385]

約数ペア:

[(1, 20657385), (3, 6885795), (5, 4131477), (7, 2951055), (9, 2295265), (15, 1377159), (21, 983685), (35, 590211), (45, 459053), (63, 327895), (105, 196737), (315, 65579)]