20318312

素因数分解:

$2^3\times 7^1\times {\mathrm{157}}^1\times {\mathrm{2311}}^1$

素因数の和:2481

約数の個数: 32

約数和(自身を含む): 43835520

約数和(自身を除く): 23517208

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 157, 314, 628, 1099, 1256, 2198, 2311, 4396, 4622, 8792, 9244, 16177, 18488, 32354, 64708, 129416, 362827, 725654, 1451308, 2539789, 2902616, 5079578, 10159156, 20318312]

約数ペア:

[(1, 20318312), (2, 10159156), (4, 5079578), (7, 2902616), (8, 2539789), (14, 1451308), (28, 725654), (56, 362827), (157, 129416), (314, 64708), (628, 32354), (1099, 18488), (1256, 16177), (2198, 9244), (2311, 8792), (4396, 4622)]