20408878

素因数分解:

$2^1\times 7^1\times {\mathrm{853}}^1\times {\mathrm{1709}}^1$

素因数の和:2571

約数の個数: 16

約数和(自身を含む): 35048160

約数和(自身を除く): 14639282

約数列:

[1, 2, 7, 14, 853, 1706, 1709, 3418, 5971, 11942, 11963, 23926, 1457777, 2915554, 10204439, 20408878]

約数ペア:

[(1, 20408878), (2, 10204439), (7, 2915554), (14, 1457777), (853, 23926), (1706, 11963), (1709, 11942), (3418, 5971)]