1297406978

素因数分解:

$2^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{2989417}}^1$

素因数の和:2989457

約数の個数: 16

約数和(自身を含む): 2295873024

約数和(自身を除く): 998466046

約数列:

[1, 2, 7, 14, 31, 62, 217, 434, 2989417, 5978834, 20925919, 41851838, 92671927, 185343854, 648703489, 1297406978]

約数ペア:

[(1, 1297406978), (2, 648703489), (7, 185343854), (14, 92671927), (31, 41851838), (62, 20925919), (217, 5978834), (434, 2989417)]