128656493

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{20399}}^1$

素因数の和:20476

約数の個数: 16

約数和(自身を含む): 158630400

約数和(自身を除く): 29973907

約数列:

[1, 7, 17, 53, 119, 371, 901, 6307, 20399, 142793, 346783, 1081147, 2427481, 7568029, 18379499, 128656493]

約数ペア:

[(1, 128656493), (7, 18379499), (17, 7568029), (53, 2427481), (119, 1081147), (371, 346783), (901, 142793), (6307, 20399)]