19963712

素因数分解:

$2^6\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{311}}^1$

素因数の和:399

約数の個数: 56

約数和(自身を含む): 42793920

約数和(自身を除く): 22830208

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 59, 64, 68, 118, 136, 236, 272, 311, 472, 544, 622, 944, 1003, 1088, 1244, 1888, 2006, 2488, 3776, 4012, 4976, 5287, 8024, 9952, 10574, 16048, 18349, 19904, 21148, 32096, 36698, 42296, 64192, 73396, 84592, 146792, 169184, 293584, 311933, 338368, 587168, 623866, 1174336, 1247732, 2495464, 4990928, 9981856, 19963712]

約数ペア:

[(1, 19963712), (2, 9981856), (4, 4990928), (8, 2495464), (16, 1247732), (17, 1174336), (32, 623866), (34, 587168), (59, 338368), (64, 311933), (68, 293584), (118, 169184), (136, 146792), (236, 84592), (272, 73396), (311, 64192), (472, 42296), (544, 36698), (622, 32096), (944, 21148), (1003, 19904), (1088, 18349), (1244, 16048), (1888, 10574), (2006, 9952), (2488, 8024), (3776, 5287), (4012, 4976)]