20997162

素因数分解:

$2^1\times 3^2\times {\mathrm{401}}^1\times {\mathrm{2909}}^1$

素因数の和:3318

約数の個数: 24

約数和(自身を含む): 45622980

約数和(自身を除く): 24625818

約数列:

[1, 2, 3, 6, 9, 18, 401, 802, 1203, 2406, 2909, 3609, 5818, 7218, 8727, 17454, 26181, 52362, 1166509, 2333018, 3499527, 6999054, 10498581, 20997162]

約数ペア:

[(1, 20997162), (2, 10498581), (3, 6999054), (6, 3499527), (9, 2333018), (18, 1166509), (401, 52362), (802, 26181), (1203, 17454), (2406, 8727), (2909, 7218), (3609, 5818)]