20851670

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{297881}}^1$

素因数の和:297895

約数の個数: 16

約数和(自身を含む): 42895008

約数和(自身を除く): 22043338

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 297881, 595762, 1489405, 2085167, 2978810, 4170334, 10425835, 20851670]

約数ペア:

[(1, 20851670), (2, 10425835), (5, 4170334), (7, 2978810), (10, 2085167), (14, 1489405), (35, 595762), (70, 297881)]