20311208

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{167}}^1\times {\mathrm{661}}^1$

素因数の和:857

約数の個数: 32

約数和(自身を含む): 40037760

約数和(自身を除く): 19726552

約数列:

[1, 2, 4, 8, 23, 46, 92, 167, 184, 334, 661, 668, 1322, 1336, 2644, 3841, 5288, 7682, 15203, 15364, 30406, 30728, 60812, 110387, 121624, 220774, 441548, 883096, 2538901, 5077802, 10155604, 20311208]

約数ペア:

[(1, 20311208), (2, 10155604), (4, 5077802), (8, 2538901), (23, 883096), (46, 441548), (92, 220774), (167, 121624), (184, 110387), (334, 60812), (661, 30728), (668, 30406), (1322, 15364), (1336, 15203), (2644, 7682), (3841, 5288)]