21269278

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{419}}^1\times {\mathrm{1493}}^1$

素因数の和:1931

約数の個数: 16

約数和(自身を含む): 33883920

約数和(自身を除く): 12614642

約数列:

[1, 2, 17, 34, 419, 838, 1493, 2986, 7123, 14246, 25381, 50762, 625567, 1251134, 10634639, 21269278]

約数ペア:

[(1, 21269278), (2, 10634639), (17, 1251134), (34, 625567), (419, 50762), (838, 25381), (1493, 14246), (2986, 7123)]