20937912

素因数分解:

$2^3\times 3^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{457}}^1$

素因数の和:572

約数の個数: 64

約数和(自身を含む): 55399680

約数和(自身を除く): 34461768

約数列:

[1, 2, 3, 4, 6, 8, 12, 23, 24, 46, 69, 83, 92, 138, 166, 184, 249, 276, 332, 457, 498, 552, 664, 914, 996, 1371, 1828, 1909, 1992, 2742, 3656, 3818, 5484, 5727, 7636, 10511, 10968, 11454, 15272, 21022, 22908, 31533, 37931, 42044, 45816, 63066, 75862, 84088, 113793, 126132, 151724, 227586, 252264, 303448, 455172, 872413, 910344, 1744826, 2617239, 3489652, 5234478, 6979304, 10468956, 20937912]

約数ペア:

[(1, 20937912), (2, 10468956), (3, 6979304), (4, 5234478), (6, 3489652), (8, 2617239), (12, 1744826), (23, 910344), (24, 872413), (46, 455172), (69, 303448), (83, 252264), (92, 227586), (138, 151724), (166, 126132), (184, 113793), (249, 84088), (276, 75862), (332, 63066), (457, 45816), (498, 42044), (552, 37931), (664, 31533), (914, 22908), (996, 21022), (1371, 15272), (1828, 11454), (1909, 10968), (1992, 10511), (2742, 7636), (3656, 5727), (3818, 5484)]