21049288

素因数分解:

$2^3\times {\mathrm{13}}^2\times {\mathrm{15569}}^1$

素因数の和:15601

約数の個数: 24

約数和(自身を含む): 42739650

約数和(自身を除く): 21690362

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 169, 338, 676, 1352, 15569, 31138, 62276, 124552, 202397, 404794, 809588, 1619176, 2631161, 5262322, 10524644, 21049288]

約数ペア:

[(1, 21049288), (2, 10524644), (4, 5262322), (8, 2631161), (13, 1619176), (26, 809588), (52, 404794), (104, 202397), (169, 124552), (338, 62276), (676, 31138), (1352, 15569)]