20563851

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{89021}}^1$

素因数の和:89042

約数の個数: 16

約数和(自身を含む): 34184448

約数和(自身を除く): 13620597

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 89021, 267063, 623147, 979231, 1869441, 2937693, 6854617, 20563851]

約数ペア:

[(1, 20563851), (3, 6854617), (7, 2937693), (11, 1869441), (21, 979231), (33, 623147), (77, 267063), (231, 89021)]