21557739

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{44633}}^1$

素因数の和:44666

約数の個数: 16

約数和(自身を含む): 34278912

約数和(自身を除く): 12721173

約数列:

[1, 3, 7, 21, 23, 69, 161, 483, 44633, 133899, 312431, 937293, 1026559, 3079677, 7185913, 21557739]

約数ペア:

[(1, 21557739), (3, 7185913), (7, 3079677), (21, 1026559), (23, 937293), (69, 312431), (161, 133899), (483, 44633)]