20711922

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{353}}^1$

素因数の和:503

約数の個数: 64

約数和(自身を含む): 52199424

約数和(自身を除く): 31487502

約数列:

[1, 2, 3, 6, 7, 11, 14, 21, 22, 33, 42, 66, 77, 127, 154, 231, 254, 353, 381, 462, 706, 762, 889, 1059, 1397, 1778, 2118, 2471, 2667, 2794, 3883, 4191, 4942, 5334, 7413, 7766, 8382, 9779, 11649, 14826, 19558, 23298, 27181, 29337, 44831, 54362, 58674, 81543, 89662, 134493, 163086, 268986, 313817, 493141, 627634, 941451, 986282, 1479423, 1882902, 2958846, 3451987, 6903974, 10355961, 20711922]

約数ペア:

[(1, 20711922), (2, 10355961), (3, 6903974), (6, 3451987), (7, 2958846), (11, 1882902), (14, 1479423), (21, 986282), (22, 941451), (33, 627634), (42, 493141), (66, 313817), (77, 268986), (127, 163086), (154, 134493), (231, 89662), (254, 81543), (353, 58674), (381, 54362), (462, 44831), (706, 29337), (762, 27181), (889, 23298), (1059, 19558), (1397, 14826), (1778, 11649), (2118, 9779), (2471, 8382), (2667, 7766), (2794, 7413), (3883, 5334), (4191, 4942)]