20198878

素因数分解:

$2^1\times 7^2\times {\mathrm{79}}^1\times {\mathrm{2609}}^1$

素因数の和:2704

約数の個数: 24

約数和(自身を含む): 35704800

約数和(自身を除く): 15505922

約数列:

[1, 2, 7, 14, 49, 79, 98, 158, 553, 1106, 2609, 3871, 5218, 7742, 18263, 36526, 127841, 206111, 255682, 412222, 1442777, 2885554, 10099439, 20198878]

約数ペア:

[(1, 20198878), (2, 10099439), (7, 2885554), (14, 1442777), (49, 412222), (79, 255682), (98, 206111), (158, 127841), (553, 36526), (1106, 18263), (2609, 7742), (3871, 5218)]