21795543

素因数分解:

$3^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{4493}}^1$

素因数の和:4524

約数の個数: 36

約数和(自身を含む): 39960648

約数和(自身を除く): 18165105

約数列:

[1, 3, 7, 9, 11, 21, 33, 49, 63, 77, 99, 147, 231, 441, 539, 693, 1617, 4493, 4851, 13479, 31451, 40437, 49423, 94353, 148269, 220157, 283059, 345961, 444807, 660471, 1037883, 1981413, 2421727, 3113649, 7265181, 21795543]

約数ペア:

[(1, 21795543), (3, 7265181), (7, 3113649), (9, 2421727), (11, 1981413), (21, 1037883), (33, 660471), (49, 444807), (63, 345961), (77, 283059), (99, 220157), (147, 148269), (231, 94353), (441, 49423), (539, 40437), (693, 31451), (1617, 13479), (4493, 4851)]