20557936

素因数分解:

$2^4\times 7^1\times {\mathrm{173}}^1\times {\mathrm{1061}}^1$

素因数の和:1249

約数の個数: 40

約数和(自身を含む): 45827424

約数和(自身を除く): 25269488

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 173, 346, 692, 1061, 1211, 1384, 2122, 2422, 2768, 4244, 4844, 7427, 8488, 9688, 14854, 16976, 19376, 29708, 59416, 118832, 183553, 367106, 734212, 1284871, 1468424, 2569742, 2936848, 5139484, 10278968, 20557936]

約数ペア:

[(1, 20557936), (2, 10278968), (4, 5139484), (7, 2936848), (8, 2569742), (14, 1468424), (16, 1284871), (28, 734212), (56, 367106), (112, 183553), (173, 118832), (346, 59416), (692, 29708), (1061, 19376), (1211, 16976), (1384, 14854), (2122, 9688), (2422, 8488), (2768, 7427), (4244, 4844)]