128194689

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{127}}^1\times {\mathrm{677}}^1$

素因数の和:885

約数の個数: 32

約数和(自身を含む): 199950336

約数和(自身を除く): 71755647

約数列:

[1, 3, 7, 21, 71, 127, 213, 381, 497, 677, 889, 1491, 2031, 2667, 4739, 9017, 14217, 27051, 48067, 63119, 85979, 144201, 189357, 257937, 336469, 601853, 1009407, 1805559, 6104509, 18313527, 42731563, 128194689]

約数ペア:

[(1, 128194689), (3, 42731563), (7, 18313527), (21, 6104509), (71, 1805559), (127, 1009407), (213, 601853), (381, 336469), (497, 257937), (677, 189357), (889, 144201), (1491, 85979), (2031, 63119), (2667, 48067), (4739, 27051), (9017, 14217)]