19801232

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{112507}}^1$

素因数の和:112526

約数の個数: 20

約数和(自身を含む): 41852976

約数和(自身を除く): 22051744

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 112507, 225014, 450028, 900056, 1237577, 1800112, 2475154, 4950308, 9900616, 19801232]

約数ペア:

[(1, 19801232), (2, 9900616), (4, 4950308), (8, 2475154), (11, 1800112), (16, 1237577), (22, 900056), (44, 450028), (88, 225014), (176, 112507)]