1639966

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{419}}^1$

素因数の和:543

約数の個数: 16

約数和(自身を含む): 2620800

約数和(自身を除く): 980834

約数列:

[1, 2, 19, 38, 103, 206, 419, 838, 1957, 3914, 7961, 15922, 43157, 86314, 819983, 1639966]

約数ペア:

[(1, 1639966), (2, 819983), (19, 86314), (38, 43157), (103, 15922), (206, 7961), (419, 3914), (838, 1957)]