21428709

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{10709}}^1$

素因数の和:10764

約数の個数: 16

約数和(自身を含む): 30844800

約数和(自身を除く): 9416091

約数列:

[1, 3, 23, 29, 69, 87, 667, 2001, 10709, 32127, 246307, 310561, 738921, 931683, 7142903, 21428709]

約数ペア:

[(1, 21428709), (3, 7142903), (23, 931683), (29, 738921), (69, 310561), (87, 246307), (667, 32127), (2001, 10709)]