20571398

素因数分解:

$2^1\times {\mathrm{71}}^1\times {\mathrm{317}}^1\times {\mathrm{457}}^1$

素因数の和:847

約数の個数: 16

約数和(自身を含む): 31459104

約数和(自身を除く): 10887706

約数列:

[1, 2, 71, 142, 317, 457, 634, 914, 22507, 32447, 45014, 64894, 144869, 289738, 10285699, 20571398]

約数ペア:

[(1, 20571398), (2, 10285699), (71, 289738), (142, 144869), (317, 64894), (457, 45014), (634, 32447), (914, 22507)]