21014501255

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{1439}}^1\times {\mathrm{3361}}^1$

素因数の和:4895

約数の個数: 32

約数和(自身を含む): 27885772800

約数和(自身を除く): 6871271545

約数列:

[1, 5, 11, 55, 79, 395, 869, 1439, 3361, 4345, 7195, 15829, 16805, 36971, 79145, 113681, 184855, 265519, 568405, 1250491, 1327595, 2920709, 4836479, 6252455, 14603545, 24182395, 53201269, 266006345, 382081841, 1910409205, 4202900251, 21014501255]

約数ペア:

[(1, 21014501255), (5, 4202900251), (11, 1910409205), (55, 382081841), (79, 266006345), (395, 53201269), (869, 24182395), (1439, 14603545), (3361, 6252455), (4345, 4836479), (7195, 2920709), (15829, 1327595), (16805, 1250491), (36971, 568405), (79145, 265519), (113681, 184855)]