19931317

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{2879}}^1$

素因数の和:2952

約数の個数: 16

約数和(自身を含む): 24330240

約数和(自身を除く): 4398923

約数列:

[1, 7, 23, 43, 161, 301, 989, 2879, 6923, 20153, 66217, 123797, 463519, 866579, 2847331, 19931317]

約数ペア:

[(1, 19931317), (7, 2847331), (23, 866579), (43, 463519), (161, 123797), (301, 66217), (989, 20153), (2879, 6923)]