20804888

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{251}}^1\times {\mathrm{797}}^1$

素因数の和:1067

約数の個数: 32

約数和(自身を含む): 42230160

約数和(自身を除く): 21425272

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 251, 502, 797, 1004, 1594, 2008, 3188, 3263, 6376, 6526, 10361, 13052, 20722, 26104, 41444, 82888, 200047, 400094, 800188, 1600376, 2600611, 5201222, 10402444, 20804888]

約数ペア:

[(1, 20804888), (2, 10402444), (4, 5201222), (8, 2600611), (13, 1600376), (26, 800188), (52, 400094), (104, 200047), (251, 82888), (502, 41444), (797, 26104), (1004, 20722), (1594, 13052), (2008, 10361), (3188, 6526), (3263, 6376)]