19991060.000000000

素因数分解:

$2^1\times 3^1\times {\mathrm{103}}^1\times {\mathrm{172867}}^1$

素因数の和:172975

約数の個数: 16

約数和(自身を含む): 215739264

約数和(自身を除く): 108907458

約数列:

[1, 2, 3, 6, 103, 206, 309, 618, 172867, 345734, 518601, 1037202, 17805301, 35610602, 53415903, 106831806]

約数ペア:

[(1, 106831806), (2, 53415903), (3, 35610602), (6, 17805301), (103, 1037202), (206, 518601), (309, 345734), (618, 172867)]