18024820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{81931}}^1$

素因数の和:81951

約数の個数: 24

約数和(自身を含む): 41293728

約数和(自身を除く): 23268908

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 81931, 163862, 327724, 409655, 819310, 901241, 1638620, 1802482, 3604964, 4506205, 9012410, 18024820]

約数ペア:

[(1, 18024820), (2, 9012410), (4, 4506205), (5, 3604964), (10, 1802482), (11, 1638620), (20, 901241), (22, 819310), (44, 409655), (55, 327724), (110, 163862), (220, 81931)]