20920387

素因数分解:

${\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{239}}^1\times {\mathrm{271}}^1$

素因数の和:546

約数の個数: 16

約数和(自身を含む): 23500800

約数和(自身を除く): 2580413

約数列:

[1, 17, 19, 239, 271, 323, 4063, 4541, 4607, 5149, 64769, 77197, 87533, 1101073, 1230611, 20920387]

約数ペア:

[(1, 20920387), (17, 1230611), (19, 1101073), (239, 87533), (271, 77197), (323, 64769), (4063, 5149), (4541, 4607)]