19918701

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{173}}^1\times {\mathrm{1163}}^1$

素因数の和:1353

約数の個数: 24

約数和(自身を含む): 31595616

約数和(自身を除く): 11676915

約数列:

[1, 3, 9, 11, 33, 99, 173, 519, 1163, 1557, 1903, 3489, 5709, 10467, 12793, 17127, 38379, 115137, 201199, 603597, 1810791, 2213189, 6639567, 19918701]

約数ペア:

[(1, 19918701), (3, 6639567), (9, 2213189), (11, 1810791), (33, 603597), (99, 201199), (173, 115137), (519, 38379), (1163, 17127), (1557, 12793), (1903, 10467), (3489, 5709)]