18969279

素因数分解:

$3^1\times 7^1\times {\mathrm{331}}^1\times {\mathrm{2729}}^1$

素因数の和:3070

約数の個数: 16

約数和(自身を含む): 29003520

約数和(自身を除く): 10034241

約数列:

[1, 3, 7, 21, 331, 993, 2317, 2729, 6951, 8187, 19103, 57309, 903299, 2709897, 6323093, 18969279]

約数ペア:

[(1, 18969279), (3, 6323093), (7, 2709897), (21, 903299), (331, 57309), (993, 19103), (2317, 8187), (2729, 6951)]