18730191

素因数分解:

$3^1\times {\mathrm{151}}^1\times {\mathrm{173}}^1\times {\mathrm{239}}^1$

素因数の和:566

約数の個数: 16

約数和(自身を含む): 25390080

約数和(自身を除く): 6659889

約数列:

[1, 3, 151, 173, 239, 453, 519, 717, 26123, 36089, 41347, 78369, 108267, 124041, 6243397, 18730191]

約数ペア:

[(1, 18730191), (3, 6243397), (151, 124041), (173, 108267), (239, 78369), (453, 41347), (519, 36089), (717, 26123)]