20704552

素因数分解:

$2^3\times {\mathrm{11}}^2\times {\mathrm{73}}^1\times {\mathrm{293}}^1$

素因数の和:394

約数の個数: 48

約数和(自身を含む): 43403220

約数和(自身を除く): 22698668

約数列:

[1, 2, 4, 8, 11, 22, 44, 73, 88, 121, 146, 242, 292, 293, 484, 584, 586, 803, 968, 1172, 1606, 2344, 3212, 3223, 6424, 6446, 8833, 12892, 17666, 21389, 25784, 35332, 35453, 42778, 70664, 70906, 85556, 141812, 171112, 235279, 283624, 470558, 941116, 1882232, 2588069, 5176138, 10352276, 20704552]

約数ペア:

[(1, 20704552), (2, 10352276), (4, 5176138), (8, 2588069), (11, 1882232), (22, 941116), (44, 470558), (73, 283624), (88, 235279), (121, 171112), (146, 141812), (242, 85556), (292, 70906), (293, 70664), (484, 42778), (584, 35453), (586, 35332), (803, 25784), (968, 21389), (1172, 17666), (1606, 12892), (2344, 8833), (3212, 6446), (3223, 6424)]