18746973

素因数分解:

$3^2\times 7^1\times {\mathrm{337}}^1\times {\mathrm{883}}^1$

素因数の和:1233

約数の個数: 24

約数和(自身を含む): 31074368

約数和(自身を除く): 12327395

約数列:

[1, 3, 7, 9, 21, 63, 337, 883, 1011, 2359, 2649, 3033, 6181, 7077, 7947, 18543, 21231, 55629, 297571, 892713, 2082997, 2678139, 6248991, 18746973]

約数ペア:

[(1, 18746973), (3, 6248991), (7, 2678139), (9, 2082997), (21, 892713), (63, 297571), (337, 55629), (883, 21231), (1011, 18543), (2359, 7947), (2649, 7077), (3033, 6181)]