21611565

素因数分解:

$3^2\times 5^1\times {\mathrm{179}}^1\times {\mathrm{2683}}^1$

素因数の和:2873

約数の個数: 24

約数和(自身を含む): 37683360

約数和(自身を除く): 16071795

約数列:

[1, 3, 5, 9, 15, 45, 179, 537, 895, 1611, 2683, 2685, 8049, 8055, 13415, 24147, 40245, 120735, 480257, 1440771, 2401285, 4322313, 7203855, 21611565]

約数ペア:

[(1, 21611565), (3, 7203855), (5, 4322313), (9, 2401285), (15, 1440771), (45, 480257), (179, 120735), (537, 40245), (895, 24147), (1611, 13415), (2683, 8055), (2685, 8049)]