18695578

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{11969}}^1$

素因数の和:12053

約数の個数: 16

約数和(自身を含む): 31026240

約数和(自身を除く): 12330662

約数列:

[1, 2, 11, 22, 71, 142, 781, 1562, 11969, 23938, 131659, 263318, 849799, 1699598, 9347789, 18695578]

約数ペア:

[(1, 18695578), (2, 9347789), (11, 1699598), (22, 849799), (71, 263318), (142, 131659), (781, 23938), (1562, 11969)]