19721886

素因数分解:

$2^1\times 3^1\times {\mathrm{19}}^1\times {\mathrm{172999}}^1$

素因数の和:173023

約数の個数: 16

約数和(自身を含む): 41520000

約数和(自身を除く): 21798114

約数列:

[1, 2, 3, 6, 19, 38, 57, 114, 172999, 345998, 518997, 1037994, 3286981, 6573962, 9860943, 19721886]

約数ペア:

[(1, 19721886), (2, 9860943), (3, 6573962), (6, 3286981), (19, 1037994), (38, 518997), (57, 345998), (114, 172999)]