21994204

素因数分解:

$2^2\times {\mathrm{41}}^2\times {\mathrm{3271}}^1$

素因数の和:3357

約数の個数: 18

約数和(自身を含む): 39463592

約数和(自身を除く): 17469388

約数列:

[1, 2, 4, 41, 82, 164, 1681, 3271, 3362, 6542, 6724, 13084, 134111, 268222, 536444, 5498551, 10997102, 21994204]

約数ペア:

[(1, 21994204), (2, 10997102), (4, 5498551), (41, 536444), (82, 268222), (164, 134111), (1681, 13084), (3271, 6724), (3362, 6542)]