18766737

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{907}}^1$

素因数の和:954

約数の個数: 36

約数和(自身を含む): 31398640

約数和(自身を除く): 12631903

約数列:

[1, 3, 9, 11, 19, 33, 57, 99, 121, 171, 209, 363, 627, 907, 1089, 1881, 2299, 2721, 6897, 8163, 9977, 17233, 20691, 29931, 51699, 89793, 109747, 155097, 189563, 329241, 568689, 987723, 1706067, 2085193, 6255579, 18766737]

約数ペア:

[(1, 18766737), (3, 6255579), (9, 2085193), (11, 1706067), (19, 987723), (33, 568689), (57, 329241), (99, 189563), (121, 155097), (171, 109747), (209, 89793), (363, 51699), (627, 29931), (907, 20691), (1089, 17233), (1881, 9977), (2299, 8163), (2721, 6897)]