21527055

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{277}}^1$

素因数の和:456

約数の個数: 48

約数和(自身を含む): 41112864

約数和(自身を除く): 19585809

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 99, 157, 165, 277, 471, 495, 785, 831, 1385, 1413, 1727, 2355, 2493, 3047, 4155, 5181, 7065, 8635, 9141, 12465, 15235, 15543, 25905, 27423, 43489, 45705, 77715, 130467, 137115, 217445, 391401, 478379, 652335, 1435137, 1957005, 2391895, 4305411, 7175685, 21527055]

約数ペア:

[(1, 21527055), (3, 7175685), (5, 4305411), (9, 2391895), (11, 1957005), (15, 1435137), (33, 652335), (45, 478379), (55, 391401), (99, 217445), (157, 137115), (165, 130467), (277, 77715), (471, 45705), (495, 43489), (785, 27423), (831, 25905), (1385, 15543), (1413, 15235), (1727, 12465), (2355, 9141), (2493, 8635), (3047, 7065), (4155, 5181)]