20519538

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{263071}}^1$

素因数の和:263089

約数の個数: 16

約数和(自身を含む): 44196096

約数和(自身を除く): 23676558

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 263071, 526142, 789213, 1578426, 3419923, 6839846, 10259769, 20519538]

約数ペア:

[(1, 20519538), (2, 10259769), (3, 6839846), (6, 3419923), (13, 1578426), (26, 789213), (39, 526142), (78, 263071)]