278208021

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1019077}}^1$

素因数の和:1019100

約数の個数: 16

約数和(自身を含む): 456546944

約数和(自身を除く): 178338923

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 1019077, 3057231, 7133539, 13248001, 21400617, 39744003, 92736007, 278208021]

約数ペア:

[(1, 278208021), (3, 92736007), (7, 39744003), (13, 21400617), (21, 13248001), (39, 7133539), (91, 3057231), (273, 1019077)]