21064918

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{65419}}^1$

素因数の和:65451

約数の個数: 16

約数和(自身を含む): 37681920

約数和(自身を除く): 16617002

約数列:

[1, 2, 7, 14, 23, 46, 161, 322, 65419, 130838, 457933, 915866, 1504637, 3009274, 10532459, 21064918]

約数ペア:

[(1, 21064918), (2, 10532459), (7, 3009274), (14, 1504637), (23, 915866), (46, 457933), (161, 130838), (322, 65419)]