19706896

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{2731}}^1$

素因数の和:2791

約数の個数: 40

約数和(自身を含む): 42684768

約数和(自身を除く): 22977872

約数列:

[1, 2, 4, 8, 11, 16, 22, 41, 44, 82, 88, 164, 176, 328, 451, 656, 902, 1804, 2731, 3608, 5462, 7216, 10924, 21848, 30041, 43696, 60082, 111971, 120164, 223942, 240328, 447884, 480656, 895768, 1231681, 1791536, 2463362, 4926724, 9853448, 19706896]

約数ペア:

[(1, 19706896), (2, 9853448), (4, 4926724), (8, 2463362), (11, 1791536), (16, 1231681), (22, 895768), (41, 480656), (44, 447884), (82, 240328), (88, 223942), (164, 120164), (176, 111971), (328, 60082), (451, 43696), (656, 30041), (902, 21848), (1804, 10924), (2731, 7216), (3608, 5462)]