18875571

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{1913}}^1$

素因数の和:1963

約数の個数: 32

約数和(自身を含む): 30868992

約数和(自身を除く): 11993421

約数列:

[1, 3, 11, 13, 23, 33, 39, 69, 143, 253, 299, 429, 759, 897, 1913, 3289, 5739, 9867, 21043, 24869, 43999, 63129, 74607, 131997, 273559, 483989, 571987, 820677, 1451967, 1715961, 6291857, 18875571]

約数ペア:

[(1, 18875571), (3, 6291857), (11, 1715961), (13, 1451967), (23, 820677), (33, 571987), (39, 483989), (69, 273559), (143, 131997), (253, 74607), (299, 63129), (429, 43999), (759, 24869), (897, 21043), (1913, 9867), (3289, 5739)]