20970290878

素因数分解:

$2^1\times {\mathrm{139}}^1\times {\mathrm{4129}}^1\times {\mathrm{18269}}^1$

素因数の和:22539

約数の個数: 16

約数和(自身を含む): 31691142000

約数和(自身を除く): 10720851122

約数列:

[1, 2, 139, 278, 4129, 8258, 18269, 36538, 573931, 1147862, 2539391, 5078782, 75432701, 150865402, 10485145439, 20970290878]

約数ペア:

[(1, 20970290878), (2, 10485145439), (139, 150865402), (278, 75432701), (4129, 5078782), (8258, 2539391), (18269, 1147862), (36538, 573931)]