21291639478

素因数分解:

$2^1\times {\mathrm{109}}^1\times {\mathrm{1871}}^1\times {\mathrm{52201}}^1$

素因数の和:54183

約数の個数: 16

約数和(自身を含む): 32248307520

約数和(自身を除く): 10956668042

約数列:

[1, 2, 109, 218, 1871, 3742, 52201, 104402, 203939, 407878, 5689909, 11379818, 97668071, 195336142, 10645819739, 21291639478]

約数ペア:

[(1, 21291639478), (2, 10645819739), (109, 195336142), (218, 97668071), (1871, 11379818), (3742, 5689909), (52201, 407878), (104402, 203939)]