21388034305

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{994561}}^1$

素因数の和:994617

約数の個数: 32

約数和(自身を含む): 30934856448

約数和(自身を除く): 9546822143

約数列:

[1, 5, 11, 17, 23, 55, 85, 115, 187, 253, 391, 935, 1265, 1955, 4301, 21505, 994561, 4972805, 10940171, 16907537, 22874903, 54700855, 84537685, 114374515, 185982907, 251623933, 388873351, 929914535, 1258119665, 1944366755, 4277606861, 21388034305]

約数ペア:

[(1, 21388034305), (5, 4277606861), (11, 1944366755), (17, 1258119665), (23, 929914535), (55, 388873351), (85, 251623933), (115, 185982907), (187, 114374515), (253, 84537685), (391, 54700855), (935, 22874903), (1265, 16907537), (1955, 10940171), (4301, 4972805), (21505, 994561)]