20786812

素因数分解:

$2^2\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{1381}}^1$

素因数の和:1509

約数の個数: 24

約数和(自身を含む): 37612512

約数和(自身を除く): 16825700

約数列:

[1, 2, 4, 53, 71, 106, 142, 212, 284, 1381, 2762, 3763, 5524, 7526, 15052, 73193, 98051, 146386, 196102, 292772, 392204, 5196703, 10393406, 20786812]

約数ペア:

[(1, 20786812), (2, 10393406), (4, 5196703), (53, 392204), (71, 292772), (106, 196102), (142, 146386), (212, 98051), (284, 73193), (1381, 15052), (2762, 7526), (3763, 5524)]