1991197439

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{13187}}^1$

素因数の和:13295

約数の個数: 32

約数和(自身を含む): 2597930496

約数和(自身を除く): 606733057

約数列:

[1, 7, 11, 37, 53, 77, 259, 371, 407, 583, 1961, 2849, 4081, 13187, 13727, 21571, 92309, 145057, 150997, 487919, 698911, 1015399, 3415433, 4892377, 5367109, 7688021, 25859707, 37569763, 53816147, 181017949, 284456777, 1991197439]

約数ペア:

[(1, 1991197439), (7, 284456777), (11, 181017949), (37, 53816147), (53, 37569763), (77, 25859707), (259, 7688021), (371, 5367109), (407, 4892377), (583, 3415433), (1961, 1015399), (2849, 698911), (4081, 487919), (13187, 150997), (13727, 145057), (21571, 92309)]