20921382146

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{87904967}}^1$

素因数の和:87904993

約数の個数: 16

約数和(自身を含む): 37974946176

約数和(自身を除く): 17053564030

約数列:

[1, 2, 7, 14, 17, 34, 119, 238, 87904967, 175809934, 615334769, 1230669538, 1494384439, 2988768878, 10460691073, 20921382146]

約数ペア:

[(1, 20921382146), (2, 10460691073), (7, 2988768878), (14, 1494384439), (17, 1230669538), (34, 615334769), (119, 175809934), (238, 87904967)]