19724089

素因数分解:

$7^1\times {\mathrm{11}}^3\times {\mathrm{29}}^1\times {\mathrm{73}}^1$

素因数の和:142

約数の個数: 32

約数和(自身を含む): 26000640

約数和(自身を除く): 6276551

約数列:

[1, 7, 11, 29, 73, 77, 121, 203, 319, 511, 803, 847, 1331, 2117, 2233, 3509, 5621, 8833, 9317, 14819, 23287, 24563, 38599, 61831, 97163, 163009, 256157, 270193, 680141, 1793099, 2817727, 19724089]

約数ペア:

[(1, 19724089), (7, 2817727), (11, 1793099), (29, 680141), (73, 270193), (77, 256157), (121, 163009), (203, 97163), (319, 61831), (511, 38599), (803, 24563), (847, 23287), (1331, 14819), (2117, 9317), (2233, 8833), (3509, 5621)]