19201741

素因数分解:

${\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^2\times {\mathrm{53}}^1$

素因数の和:157

約数の個数: 24

約数和(自身を含む): 22521240

約数和(自身を除く): 3319499

約数列:

[1, 13, 29, 31, 53, 377, 403, 689, 899, 961, 1537, 1643, 11687, 12493, 19981, 21359, 27869, 47647, 50933, 362297, 619411, 662129, 1477057, 19201741]

約数ペア:

[(1, 19201741), (13, 1477057), (29, 662129), (31, 619411), (53, 362297), (377, 50933), (403, 47647), (689, 27869), (899, 21359), (961, 19981), (1537, 12493), (1643, 11687)]