21622216

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^2\times {\mathrm{3191}}^1$

素因数の和:3226

約数の個数: 48

約数和(自身を含む): 50944320

約数和(自身を除く): 29322104

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 44, 56, 77, 88, 121, 154, 242, 308, 484, 616, 847, 968, 1694, 3191, 3388, 6382, 6776, 12764, 22337, 25528, 35101, 44674, 70202, 89348, 140404, 178696, 245707, 280808, 386111, 491414, 772222, 982828, 1544444, 1965656, 2702777, 3088888, 5405554, 10811108, 21622216]

約数ペア:

[(1, 21622216), (2, 10811108), (4, 5405554), (7, 3088888), (8, 2702777), (11, 1965656), (14, 1544444), (22, 982828), (28, 772222), (44, 491414), (56, 386111), (77, 280808), (88, 245707), (121, 178696), (154, 140404), (242, 89348), (308, 70202), (484, 44674), (616, 35101), (847, 25528), (968, 22337), (1694, 12764), (3191, 6776), (3388, 6382)]