166657638

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{1987}}^1\times {\mathrm{1997}}^1$

素因数の和:3996

約数の個数: 32

約数和(自身を含む): 381314304

約数和(自身を除く): 214656666

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 1987, 1997, 3974, 3994, 5961, 5991, 11922, 11982, 13909, 13979, 27818, 27958, 41727, 41937, 83454, 83874, 3968039, 7936078, 11904117, 23808234, 27776273, 55552546, 83328819, 166657638]

約数ペア:

[(1, 166657638), (2, 83328819), (3, 55552546), (6, 27776273), (7, 23808234), (14, 11904117), (21, 7936078), (42, 3968039), (1987, 83874), (1997, 83454), (3974, 41937), (3994, 41727), (5961, 27958), (5991, 27818), (11922, 13979), (11982, 13909)]