20783609

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{8707}}^1$

素因数の和:8756

約数の個数: 16

約数和(自身を含む): 26750976

約数和(自身を除く): 5967367

約数列:

[1, 7, 11, 31, 77, 217, 341, 2387, 8707, 60949, 95777, 269917, 670439, 1889419, 2969087, 20783609]

約数ペア:

[(1, 20783609), (7, 2969087), (11, 1889419), (31, 670439), (77, 269917), (217, 95777), (341, 60949), (2387, 8707)]