166991244

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{1987991}}^1$

素因数の和:1988005

約数の個数: 24

約数和(自身を含む): 445310208

約数和(自身を除く): 278318964

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 1987991, 3975982, 5963973, 7951964, 11927946, 13915937, 23855892, 27831874, 41747811, 55663748, 83495622, 166991244]

約数ペア:

[(1, 166991244), (2, 83495622), (3, 55663748), (4, 41747811), (6, 27831874), (7, 23855892), (12, 13915937), (14, 11927946), (21, 7951964), (28, 5963973), (42, 3975982), (84, 1987991)]