20191639

素因数分解:

${\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{881}}^1$

素因数の和:978

約数の個数: 16

約数和(自身を含む): 22819104

約数和(自身を除く): 2627465

約数列:

[1, 13, 41, 43, 533, 559, 881, 1763, 11453, 22919, 36121, 37883, 469573, 492479, 1553203, 20191639]

約数ペア:

[(1, 20191639), (13, 1553203), (41, 492479), (43, 469573), (533, 37883), (559, 36121), (881, 22919), (1763, 11453)]