20639008

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{49613}}^1$

素因数の和:49636

約数の個数: 24

約数和(自身を含む): 43759548

約数和(自身を除く): 23120540

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 208, 416, 49613, 99226, 198452, 396904, 644969, 793808, 1289938, 1587616, 2579876, 5159752, 10319504, 20639008]

約数ペア:

[(1, 20639008), (2, 10319504), (4, 5159752), (8, 2579876), (13, 1587616), (16, 1289938), (26, 793808), (32, 644969), (52, 396904), (104, 198452), (208, 99226), (416, 49613)]