21051003

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{4297}}^1$

素因数の和:4394

約数の個数: 16

約数和(自身を含む): 29707776

約数和(自身を除く): 8656773

約数列:

[1, 3, 23, 69, 71, 213, 1633, 4297, 4899, 12891, 98831, 296493, 305087, 915261, 7017001, 21051003]

約数ペア:

[(1, 21051003), (3, 7017001), (23, 915261), (69, 305087), (71, 296493), (213, 98831), (1633, 12891), (4297, 4899)]