20931841

素因数分解:

$7^1\times {\mathrm{43}}^1\times {\mathrm{197}}^1\times {\mathrm{353}}^1$

素因数の和:600

約数の個数: 16

約数和(自身を含む): 24672384

約数和(自身を除く): 3740543

約数列:

[1, 7, 43, 197, 301, 353, 1379, 2471, 8471, 15179, 59297, 69541, 106253, 486787, 2990263, 20931841]

約数ペア:

[(1, 20931841), (7, 2990263), (43, 486787), (197, 106253), (301, 69541), (353, 59297), (1379, 15179), (2471, 8471)]