11989989

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{281}}^1\times {\mathrm{431}}^1$

素因数の和:729

約数の個数: 24

約数和(自身を含む): 19004544

約数和(自身を除く): 7014555

約数列:

[1, 3, 9, 11, 33, 99, 281, 431, 843, 1293, 2529, 3091, 3879, 4741, 9273, 14223, 27819, 42669, 121111, 363333, 1089999, 1332221, 3996663, 11989989]

約数ペア:

[(1, 11989989), (3, 3996663), (9, 1332221), (11, 1089999), (33, 363333), (99, 121111), (281, 42669), (431, 27819), (843, 14223), (1293, 9273), (2529, 4741), (3091, 3879)]