20988874

素因数分解:

$2^1\times {\mathrm{83}}^1\times {\mathrm{227}}^1\times {\mathrm{557}}^1$

素因数の和:869

約数の個数: 16

約数和(自身を含む): 32060448

約数和(自身を除く): 11071574

約数列:

[1, 2, 83, 166, 227, 454, 557, 1114, 18841, 37682, 46231, 92462, 126439, 252878, 10494437, 20988874]

約数ペア:

[(1, 20988874), (2, 10494437), (83, 252878), (166, 126439), (227, 92462), (454, 46231), (557, 37682), (1114, 18841)]