18318879

素因数分解:

$3^4\times {\mathrm{23}}^1\times {\mathrm{9833}}^1$

素因数の和:9868

約数の個数: 20

約数和(自身を含む): 28557936

約数和(自身を除く): 10239057

約数列:

[1, 3, 9, 23, 27, 69, 81, 207, 621, 1863, 9833, 29499, 88497, 226159, 265491, 678477, 796473, 2035431, 6106293, 18318879]

約数ペア:

[(1, 18318879), (3, 6106293), (9, 2035431), (23, 796473), (27, 678477), (69, 265491), (81, 226159), (207, 88497), (621, 29499), (1863, 9833)]