20923427

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{2579}}^1$

素因数の和:2666

約数の個数: 16

約数和(自身を含む): 25593600

約数和(自身を除く): 4670173

約数列:

[1, 7, 19, 61, 133, 427, 1159, 2579, 8113, 18053, 49001, 157319, 343007, 1101233, 2989061, 20923427]

約数ペア:

[(1, 20923427), (7, 2989061), (19, 1101233), (61, 343007), (133, 157319), (427, 49001), (1159, 18053), (2579, 8113)]