20637892

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{199}}^1\times {\mathrm{2357}}^1$

素因数の和:2571

約数の個数: 24

約数和(自身を含む): 39614400

約数和(自身を除く): 18976508

約数列:

[1, 2, 4, 11, 22, 44, 199, 398, 796, 2189, 2357, 4378, 4714, 8756, 9428, 25927, 51854, 103708, 469043, 938086, 1876172, 5159473, 10318946, 20637892]

約数ペア:

[(1, 20637892), (2, 10318946), (4, 5159473), (11, 1876172), (22, 938086), (44, 469043), (199, 103708), (398, 51854), (796, 25927), (2189, 9428), (2357, 8756), (4378, 4714)]