1218987

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{1759}}^1$

素因数の和:1783

約数の個数: 24

約数和(自身を含む): 2196480

約数和(自身を除く): 977493

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 77, 99, 231, 693, 1759, 5277, 12313, 15831, 19349, 36939, 58047, 110817, 135443, 174141, 406329, 1218987]

約数ペア:

[(1, 1218987), (3, 406329), (7, 174141), (9, 135443), (11, 110817), (21, 58047), (33, 36939), (63, 19349), (77, 15831), (99, 12313), (231, 5277), (693, 1759)]