20559532

素因数分解:

$2^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{17909}}^1$

素因数の和:17961

約数の個数: 24

約数和(自身を含む): 42124320

約数和(自身を除く): 21564788

約数列:

[1, 2, 4, 7, 14, 28, 41, 82, 164, 287, 574, 1148, 17909, 35818, 71636, 125363, 250726, 501452, 734269, 1468538, 2937076, 5139883, 10279766, 20559532]

約数ペア:

[(1, 20559532), (2, 10279766), (4, 5139883), (7, 2937076), (14, 1468538), (28, 734269), (41, 501452), (82, 250726), (164, 125363), (287, 71636), (574, 35818), (1148, 17909)]