21922120

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{49823}}^1$

素因数の和:49845

約数の個数: 32

約数和(自身を含む): 53809920

約数和(自身を除く): 31887800

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 49823, 99646, 199292, 249115, 398584, 498230, 548053, 996460, 1096106, 1992920, 2192212, 2740265, 4384424, 5480530, 10961060, 21922120]

約数ペア:

[(1, 21922120), (2, 10961060), (4, 5480530), (5, 4384424), (8, 2740265), (10, 2192212), (11, 1992920), (20, 1096106), (22, 996460), (40, 548053), (44, 498230), (55, 398584), (88, 249115), (110, 199292), (220, 99646), (440, 49823)]