21478576

素因数分解:

$2^4\times 7^1\times {\mathrm{191773}}^1$

素因数の和:191788

約数の個数: 20

約数和(自身を含む): 47559952

約数和(自身を除く): 26081376

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 191773, 383546, 767092, 1342411, 1534184, 2684822, 3068368, 5369644, 10739288, 21478576]

約数ペア:

[(1, 21478576), (2, 10739288), (4, 5369644), (7, 3068368), (8, 2684822), (14, 1534184), (16, 1342411), (28, 767092), (56, 383546), (112, 191773)]