81969069

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{211}}^1\times {\mathrm{1423}}^1$

素因数の和:1657

約数の個数: 32

約数和(自身を含む): 135245824

約数和(自身を除く): 53276755

約数列:

[1, 3, 7, 13, 21, 39, 91, 211, 273, 633, 1423, 1477, 2743, 4269, 4431, 8229, 9961, 18499, 19201, 29883, 55497, 57603, 129493, 300253, 388479, 900759, 2101771, 3903289, 6305313, 11709867, 27323023, 81969069]

約数ペア:

[(1, 81969069), (3, 27323023), (7, 11709867), (13, 6305313), (21, 3903289), (39, 2101771), (91, 900759), (211, 388479), (273, 300253), (633, 129493), (1423, 57603), (1477, 55497), (2743, 29883), (4269, 19201), (4431, 18499), (8229, 9961)]