20505328

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{55721}}^1$

素因数の和:55752

約数の個数: 20

約数和(自身を含む): 41457168

約数和(自身を除く): 20951840

約数列:

[1, 2, 4, 8, 16, 23, 46, 92, 184, 368, 55721, 111442, 222884, 445768, 891536, 1281583, 2563166, 5126332, 10252664, 20505328]

約数ペア:

[(1, 20505328), (2, 10252664), (4, 5126332), (8, 2563166), (16, 1281583), (23, 891536), (46, 445768), (92, 222884), (184, 111442), (368, 55721)]