21280171

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{3511}}^1$

素因数の和:3570

約数の個数: 16

約数和(自身を含む): 25286400

約数和(自身を除く): 4006229

約数列:

[1, 11, 19, 29, 209, 319, 551, 3511, 6061, 38621, 66709, 101819, 733799, 1120009, 1934561, 21280171]

約数ペア:

[(1, 21280171), (11, 1934561), (19, 1120009), (29, 733799), (209, 101819), (319, 66709), (551, 38621), (3511, 6061)]