20561014

素因数分解:

$2^1\times {\mathrm{79}}^1\times {\mathrm{179}}^1\times {\mathrm{727}}^1$

素因数の和:987

約数の個数: 16

約数和(自身を含む): 31449600

約数和(自身を除く): 10888586

約数列:

[1, 2, 79, 158, 179, 358, 727, 1454, 14141, 28282, 57433, 114866, 130133, 260266, 10280507, 20561014]

約数ペア:

[(1, 20561014), (2, 10280507), (79, 260266), (158, 130133), (179, 114866), (358, 57433), (727, 28282), (1454, 14141)]