20564174

素因数分解:

$2^1\times {\mathrm{79}}^1\times {\mathrm{157}}^1\times {\mathrm{829}}^1$

素因数の和:1067

約数の個数: 16

約数和(自身を含む): 31473600

約数和(自身を除く): 10909426

約数列:

[1, 2, 79, 157, 158, 314, 829, 1658, 12403, 24806, 65491, 130153, 130982, 260306, 10282087, 20564174]

約数ペア:

[(1, 20564174), (2, 10282087), (79, 260306), (157, 130982), (158, 130153), (314, 65491), (829, 24806), (1658, 12403)]