21447937

素因数分解:

$7^2\times {\mathrm{23}}^1\times {\mathrm{19031}}^1$

素因数の和:19068

約数の個数: 12

約数和(自身を含む): 26035776

約数和(自身を除く): 4587839

約数列:

[1, 7, 23, 49, 161, 1127, 19031, 133217, 437713, 932519, 3063991, 21447937]

約数ペア:

[(1, 21447937), (7, 3063991), (23, 932519), (49, 437713), (161, 133217), (1127, 19031)]