19997322

素因数分解:

$2^1\times 3^1\times {\mathrm{43}}^1\times {\mathrm{77509}}^1$

素因数の和:77557

約数の個数: 16

約数和(自身を含む): 40925280

約数和(自身を除く): 20927958

約数列:

[1, 2, 3, 6, 43, 86, 129, 258, 77509, 155018, 232527, 465054, 3332887, 6665774, 9998661, 19997322]

約数ペア:

[(1, 19997322), (2, 9998661), (3, 6665774), (6, 3332887), (43, 465054), (86, 232527), (129, 155018), (258, 77509)]