20490392

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{197023}}^1$

素因数の和:197042

約数の個数: 16

約数和(自身を含む): 41375040

約数和(自身を除く): 20884648

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 197023, 394046, 788092, 1576184, 2561299, 5122598, 10245196, 20490392]

約数ペア:

[(1, 20490392), (2, 10245196), (4, 5122598), (8, 2561299), (13, 1576184), (26, 788092), (52, 394046), (104, 197023)]