21755585

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{139}}^1\times {\mathrm{1361}}^1$

素因数の和:1528

約数の個数: 16

約数和(自身を含む): 27457920

約数和(自身を除く): 5702335

約数列:

[1, 5, 23, 115, 139, 695, 1361, 3197, 6805, 15985, 31303, 156515, 189179, 945895, 4351117, 21755585]

約数ペア:

[(1, 21755585), (5, 4351117), (23, 945895), (115, 189179), (139, 156515), (695, 31303), (1361, 15985), (3197, 6805)]