18991274

素因数分解:

$2^1\times {\mathrm{59}}^1\times {\mathrm{227}}^1\times {\mathrm{709}}^1$

素因数の和:997

約数の個数: 16

約数和(自身を含む): 29138400

約数和(自身を除く): 10147126

約数列:

[1, 2, 59, 118, 227, 454, 709, 1418, 13393, 26786, 41831, 83662, 160943, 321886, 9495637, 18991274]

約数ペア:

[(1, 18991274), (2, 9495637), (59, 321886), (118, 160943), (227, 83662), (454, 41831), (709, 26786), (1418, 13393)]