988991042

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{157}}^1\times {\mathrm{18637}}^1$

素因数の和:18822

約数の個数: 24

約数和(自身を含む): 1616697396

約数和(自身を除く): 627706354

約数列:

[1, 2, 13, 26, 157, 169, 314, 338, 2041, 4082, 18637, 26533, 37274, 53066, 242281, 484562, 2926009, 3149653, 5852018, 6299306, 38038117, 76076234, 494495521, 988991042]

約数ペア:

[(1, 988991042), (2, 494495521), (13, 76076234), (26, 38038117), (157, 6299306), (169, 5852018), (314, 3149653), (338, 2926009), (2041, 484562), (4082, 242281), (18637, 53066), (26533, 37274)]