31828221

素因数分解:

$3^4\times {\mathrm{443}}^1\times {\mathrm{887}}^1$

素因数の和:1342

約数の個数: 20

約数和(自身を含む): 47706912

約数和(自身を除く): 15878691

約数列:

[1, 3, 9, 27, 81, 443, 887, 1329, 2661, 3987, 7983, 11961, 23949, 35883, 71847, 392941, 1178823, 3536469, 10609407, 31828221]

約数ペア:

[(1, 31828221), (3, 10609407), (9, 3536469), (27, 1178823), (81, 392941), (443, 71847), (887, 35883), (1329, 23949), (2661, 11961), (3987, 7983)]