19981749

素因数分解:

$3^1\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{1213}}^1$

素因数の和:1269

約数の個数: 24

約数和(自身を含む): 29815840

約数和(自身を除く): 9834091

約数列:

[1, 3, 17, 19, 51, 57, 289, 323, 867, 969, 1213, 3639, 5491, 16473, 20621, 23047, 61863, 69141, 350557, 391799, 1051671, 1175397, 6660583, 19981749]

約数ペア:

[(1, 19981749), (3, 6660583), (17, 1175397), (19, 1051671), (51, 391799), (57, 350557), (289, 69141), (323, 61863), (867, 23047), (969, 20621), (1213, 16473), (3639, 5491)]