21296392

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{193}}^1\times {\mathrm{1061}}^1$

素因数の和:1273

約数の個数: 32

約数和(自身を含む): 43265880

約数和(自身を除く): 21969488

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 193, 386, 772, 1061, 1544, 2122, 2509, 4244, 5018, 8488, 10036, 13793, 20072, 27586, 55172, 110344, 204773, 409546, 819092, 1638184, 2662049, 5324098, 10648196, 21296392]

約数ペア:

[(1, 21296392), (2, 10648196), (4, 5324098), (8, 2662049), (13, 1638184), (26, 819092), (52, 409546), (104, 204773), (193, 110344), (386, 55172), (772, 27586), (1061, 20072), (1544, 13793), (2122, 10036), (2509, 8488), (4244, 5018)]