20836654

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{7723}}^1$

素因数の和:7815

約数の個数: 16

約数和(自身を含む): 33367680

約数和(自身を除く): 12531026

約数列:

[1, 2, 19, 38, 71, 142, 1349, 2698, 7723, 15446, 146737, 293474, 548333, 1096666, 10418327, 20836654]

約数ペア:

[(1, 20836654), (2, 10418327), (19, 1096666), (38, 548333), (71, 293474), (142, 146737), (1349, 15446), (2698, 7723)]