18687697

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{1979}}^1$

素因数の和:2076

約数の個数: 16

約数和(自身を含む): 22809600

約数和(自身を除く): 4121903

約数列:

[1, 7, 19, 71, 133, 497, 1349, 1979, 9443, 13853, 37601, 140509, 263207, 983563, 2669671, 18687697]

約数ペア:

[(1, 18687697), (7, 2669671), (19, 983563), (71, 263207), (133, 140509), (497, 37601), (1349, 13853), (1979, 9443)]