19715018

素因数分解:

$2^1\times {\mathrm{67}}^1\times {\mathrm{167}}^1\times {\mathrm{881}}^1$

素因数の和:1117

約数の個数: 16

約数和(自身を含む): 30227904

約数和(自身を除く): 10512886

約数列:

[1, 2, 67, 134, 167, 334, 881, 1762, 11189, 22378, 59027, 118054, 147127, 294254, 9857509, 19715018]

約数ペア:

[(1, 19715018), (2, 9857509), (67, 294254), (134, 147127), (167, 118054), (334, 59027), (881, 22378), (1762, 11189)]