20530419

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{479}}^1$

素因数の和:659

約数の個数: 32

約数和(自身を含む): 33976320

約数和(自身を除く): 13445901

約数列:

[1, 3, 7, 13, 21, 39, 91, 157, 273, 471, 479, 1099, 1437, 2041, 3297, 3353, 6123, 6227, 10059, 14287, 18681, 42861, 43589, 75203, 130767, 225609, 526421, 977639, 1579263, 2932917, 6843473, 20530419]

約数ペア:

[(1, 20530419), (3, 6843473), (7, 2932917), (13, 1579263), (21, 977639), (39, 526421), (91, 225609), (157, 130767), (273, 75203), (471, 43589), (479, 42861), (1099, 18681), (1437, 14287), (2041, 10059), (3297, 6227), (3353, 6123)]