16993921

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{1103}}^1$

素因数の和:1212

約数の個数: 16

約数和(自身を含む): 20348928

約数和(自身を除く): 3355007

約数列:

[1, 7, 31, 71, 217, 497, 1103, 2201, 7721, 15407, 34193, 78313, 239351, 548191, 2427703, 16993921]

約数ペア:

[(1, 16993921), (7, 2427703), (31, 548191), (71, 239351), (217, 78313), (497, 34193), (1103, 15407), (2201, 7721)]