19513741

素因数分解:

${\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{199}}^1\times {\mathrm{397}}^1$

素因数の和:628

約数の個数: 16

約数和(自身を含む): 22288000

約数和(自身を除く): 2774259

約数列:

[1, 13, 19, 199, 247, 397, 2587, 3781, 5161, 7543, 49153, 79003, 98059, 1027039, 1501057, 19513741]

約数ペア:

[(1, 19513741), (13, 1501057), (19, 1027039), (199, 98059), (247, 79003), (397, 49153), (2587, 7543), (3781, 5161)]