21081781790

素因数分解:

$2^1\times 5^1\times {\mathrm{193}}^1\times {\mathrm{10923203}}^1$

素因数の和:10923403

約数の個数: 16

約数和(自身を含む): 38143828368

約数和(自身を除く): 17062046578

約数列:

[1, 2, 5, 10, 193, 386, 965, 1930, 10923203, 21846406, 54616015, 109232030, 2108178179, 4216356358, 10540890895, 21081781790]

約数ペア:

[(1, 21081781790), (2, 10540890895), (5, 4216356358), (10, 2108178179), (193, 109232030), (386, 54616015), (965, 21846406), (1930, 10923203)]