20831272

素因数分解:

$2^3\times 7^2\times {\mathrm{11}}^1\times {\mathrm{4831}}^1$

素因数の和:4862

約数の個数: 48

約数和(自身を含む): 49576320

約数和(自身を除く): 28745048

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 44, 49, 56, 77, 88, 98, 154, 196, 308, 392, 539, 616, 1078, 2156, 4312, 4831, 9662, 19324, 33817, 38648, 53141, 67634, 106282, 135268, 212564, 236719, 270536, 371987, 425128, 473438, 743974, 946876, 1487948, 1893752, 2603909, 2975896, 5207818, 10415636, 20831272]

約数ペア:

[(1, 20831272), (2, 10415636), (4, 5207818), (7, 2975896), (8, 2603909), (11, 1893752), (14, 1487948), (22, 946876), (28, 743974), (44, 473438), (49, 425128), (56, 371987), (77, 270536), (88, 236719), (98, 212564), (154, 135268), (196, 106282), (308, 67634), (392, 53141), (539, 38648), (616, 33817), (1078, 19324), (2156, 9662), (4312, 4831)]