21851709

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{499}}^1\times {\mathrm{1327}}^1$

素因数の和:1840

約数の個数: 16

約数和(自身を含む): 31872000

約数和(自身を除く): 10020291

約数列:

[1, 3, 11, 33, 499, 1327, 1497, 3981, 5489, 14597, 16467, 43791, 662173, 1986519, 7283903, 21851709]

約数ペア:

[(1, 21851709), (3, 7283903), (11, 1986519), (33, 662173), (499, 43791), (1327, 16467), (1497, 14597), (3981, 5489)]