16749681

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{263}}^1$

素因数の和:373

約数の個数: 32

約数和(自身を含む): 25546752

約数和(自身を除く): 8797071

約数列:

[1, 3, 13, 23, 39, 69, 71, 213, 263, 299, 789, 897, 923, 1633, 2769, 3419, 4899, 6049, 10257, 18147, 18673, 21229, 56019, 63687, 78637, 235911, 242749, 429479, 728247, 1288437, 5583227, 16749681]

約数ペア:

[(1, 16749681), (3, 5583227), (13, 1288437), (23, 728247), (39, 429479), (69, 242749), (71, 235911), (213, 78637), (263, 63687), (299, 56019), (789, 21229), (897, 18673), (923, 18147), (1633, 10257), (2769, 6049), (3419, 4899)]