20512956807

素因数分解:

$3^3\times 7^1\times {\mathrm{6421}}^1\times {\mathrm{16903}}^1$

素因数の和:23340

約数の個数: 32

約数和(自身を含む): 34738396160

約数和(自身を除く): 14225439353

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 6421, 16903, 19263, 44947, 50709, 57789, 118321, 134841, 152127, 173367, 354963, 404523, 456381, 1064889, 1213569, 3194667, 108534163, 325602489, 759739141, 976807467, 2279217423, 2930422401, 6837652269, 20512956807]

約数ペア:

[(1, 20512956807), (3, 6837652269), (7, 2930422401), (9, 2279217423), (21, 976807467), (27, 759739141), (63, 325602489), (189, 108534163), (6421, 3194667), (16903, 1213569), (19263, 1064889), (44947, 456381), (50709, 404523), (57789, 354963), (118321, 173367), (134841, 152127)]