128800539

素因数分解:

$3^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{43499}}^1$

素因数の和:43559

約数の個数: 24

約数和(自身を含む): 217152000

約数和(自身を除く): 88351461

約数列:

[1, 3, 7, 9, 21, 47, 63, 141, 329, 423, 987, 2961, 43499, 130497, 304493, 391491, 913479, 2044453, 2740437, 6133359, 14311171, 18400077, 42933513, 128800539]

約数ペア:

[(1, 128800539), (3, 42933513), (7, 18400077), (9, 14311171), (21, 6133359), (47, 2740437), (63, 2044453), (141, 913479), (329, 391491), (423, 304493), (987, 130497), (2961, 43499)]