20553554

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{77269}}^1$

素因数の和:77297

約数の個数: 16

約数和(自身を含む): 37089600

約数和(自身を除く): 16536046

約数列:

[1, 2, 7, 14, 19, 38, 133, 266, 77269, 154538, 540883, 1081766, 1468111, 2936222, 10276777, 20553554]

約数ペア:

[(1, 20553554), (2, 10276777), (7, 2936222), (14, 1468111), (19, 1081766), (38, 540883), (133, 154538), (266, 77269)]