21022791

素因数分解:

$3^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{2551}}^1$

素因数の和:2662

約数の個数: 16

約数和(自身を含む): 29154048

約数和(自身を除く): 8131257

約数列:

[1, 3, 41, 67, 123, 201, 2551, 2747, 7653, 8241, 104591, 170917, 313773, 512751, 7007597, 21022791]

約数ペア:

[(1, 21022791), (3, 7007597), (41, 512751), (67, 313773), (123, 170917), (201, 104591), (2551, 8241), (2747, 7653)]