20505708

素因数分解:

$2^2\times 3^2\times {\mathrm{569603}}^1$

素因数の和:569613

約数の個数: 18

約数和(自身を含む): 51833964

約数和(自身を除く): 31328256

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 569603, 1139206, 1708809, 2278412, 3417618, 5126427, 6835236, 10252854, 20505708]

約数ペア:

[(1, 20505708), (2, 10252854), (3, 6835236), (4, 5126427), (6, 3417618), (9, 2278412), (12, 1708809), (18, 1139206), (36, 569603)]