19910816

素因数分解:

$2^5\times {\mathrm{683}}^1\times {\mathrm{911}}^1$

素因数の和:1604

約数の個数: 24

約数和(自身を含む): 39299904

約数和(自身を除く): 19389088

約数列:

[1, 2, 4, 8, 16, 32, 683, 911, 1366, 1822, 2732, 3644, 5464, 7288, 10928, 14576, 21856, 29152, 622213, 1244426, 2488852, 4977704, 9955408, 19910816]

約数ペア:

[(1, 19910816), (2, 9955408), (4, 4977704), (8, 2488852), (16, 1244426), (32, 622213), (683, 29152), (911, 21856), (1366, 14576), (1822, 10928), (2732, 7288), (3644, 5464)]