20283978

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{503}}^1$

素因数の和:579

約数の個数: 64

約数和(自身を含む): 48771072

約数和(自身を除く): 28487094

約数列:

[1, 2, 3, 6, 11, 13, 22, 26, 33, 39, 47, 66, 78, 94, 141, 143, 282, 286, 429, 503, 517, 611, 858, 1006, 1034, 1222, 1509, 1551, 1833, 3018, 3102, 3666, 5533, 6539, 6721, 11066, 13078, 13442, 16599, 19617, 20163, 23641, 33198, 39234, 40326, 47282, 70923, 71929, 141846, 143858, 215787, 260051, 307333, 431574, 520102, 614666, 780153, 921999, 1560306, 1843998, 3380663, 6761326, 10141989, 20283978]

約数ペア:

[(1, 20283978), (2, 10141989), (3, 6761326), (6, 3380663), (11, 1843998), (13, 1560306), (22, 921999), (26, 780153), (33, 614666), (39, 520102), (47, 431574), (66, 307333), (78, 260051), (94, 215787), (141, 143858), (143, 141846), (282, 71929), (286, 70923), (429, 47282), (503, 40326), (517, 39234), (611, 33198), (858, 23641), (1006, 20163), (1034, 19617), (1222, 16599), (1509, 13442), (1551, 13078), (1833, 11066), (3018, 6721), (3102, 6539), (3666, 5533)]