19290788

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{39857}}^1$

素因数の和:39883

約数の個数: 18

約数和(自身を含む): 37107798

約数和(自身を除く): 17817010

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 39857, 79714, 159428, 438427, 876854, 1753708, 4822697, 9645394, 19290788]

約数ペア:

[(1, 19290788), (2, 9645394), (4, 4822697), (11, 1753708), (22, 876854), (44, 438427), (121, 159428), (242, 79714), (484, 39857)]