21897668

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{29}}^1\times {\mathrm{1117}}^1$

素因数の和:1176

約数の個数: 36

約数和(自身を含む): 42964740

約数和(自身を除く): 21067072

約数列:

[1, 2, 4, 13, 26, 29, 52, 58, 116, 169, 338, 377, 676, 754, 1117, 1508, 2234, 4468, 4901, 9802, 14521, 19604, 29042, 32393, 58084, 64786, 129572, 188773, 377546, 421109, 755092, 842218, 1684436, 5474417, 10948834, 21897668]

約数ペア:

[(1, 21897668), (2, 10948834), (4, 5474417), (13, 1684436), (26, 842218), (29, 755092), (52, 421109), (58, 377546), (116, 188773), (169, 129572), (338, 64786), (377, 58084), (676, 32393), (754, 29042), (1117, 19604), (1508, 14521), (2234, 9802), (4468, 4901)]