21993322

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{2099}}^1$

素因数の和:2158

約数の個数: 24

約数和(自身を含む): 36892800

約数和(自身を除く): 14899478

約数列:

[1, 2, 13, 26, 31, 62, 169, 338, 403, 806, 2099, 4198, 5239, 10478, 27287, 54574, 65069, 130138, 354731, 709462, 845897, 1691794, 10996661, 21993322]

約数ペア:

[(1, 21993322), (2, 10996661), (13, 1691794), (26, 845897), (31, 709462), (62, 354731), (169, 130138), (338, 65069), (403, 54574), (806, 27287), (2099, 10478), (4198, 5239)]