278260143

素因数分解:

$3^1\times 7^1\times {\mathrm{349}}^1\times {\mathrm{37967}}^1$

素因数の和:38326

約数の個数: 16

約数和(自身を含む): 425241600

約数和(自身を除く): 146981457

約数列:

[1, 3, 7, 21, 349, 1047, 2443, 7329, 37967, 113901, 265769, 797307, 13250483, 39751449, 92753381, 278260143]

約数ペア:

[(1, 278260143), (3, 92753381), (7, 39751449), (21, 13250483), (349, 797307), (1047, 265769), (2443, 113901), (7329, 37967)]