21027105

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{397}}^1$

素因数の和:526

約数の個数: 48

約数和(自身を含む): 40233024

約数和(自身を除く): 19205919

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 99, 107, 165, 321, 397, 495, 535, 963, 1177, 1191, 1605, 1985, 3531, 3573, 4367, 4815, 5885, 5955, 10593, 13101, 17655, 17865, 21835, 39303, 42479, 52965, 65505, 127437, 196515, 212395, 382311, 467269, 637185, 1401807, 1911555, 2336345, 4205421, 7009035, 21027105]

約数ペア:

[(1, 21027105), (3, 7009035), (5, 4205421), (9, 2336345), (11, 1911555), (15, 1401807), (33, 637185), (45, 467269), (55, 382311), (99, 212395), (107, 196515), (165, 127437), (321, 65505), (397, 52965), (495, 42479), (535, 39303), (963, 21835), (1177, 17865), (1191, 17655), (1605, 13101), (1985, 10593), (3531, 5955), (3573, 5885), (4367, 4815)]