20688986

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{443}}^1\times {\mathrm{1229}}^1$

素因数の和:1693

約数の個数: 16

約数和(自身を含む): 32767200

約数和(自身を除く): 12078214

約数列:

[1, 2, 19, 38, 443, 886, 1229, 2458, 8417, 16834, 23351, 46702, 544447, 1088894, 10344493, 20688986]

約数ペア:

[(1, 20688986), (2, 10344493), (19, 1088894), (38, 544447), (443, 46702), (886, 23351), (1229, 16834), (2458, 8417)]