21521346

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{1259}}^1$

素因数の和:1319

約数の個数: 64

約数和(自身を含む): 55157760

約数和(自身を除く): 33636414

約数列:

[1, 2, 3, 6, 7, 11, 14, 21, 22, 33, 37, 42, 66, 74, 77, 111, 154, 222, 231, 259, 407, 462, 518, 777, 814, 1221, 1259, 1554, 2442, 2518, 2849, 3777, 5698, 7554, 8547, 8813, 13849, 17094, 17626, 26439, 27698, 41547, 46583, 52878, 83094, 93166, 96943, 139749, 193886, 279498, 290829, 326081, 512413, 581658, 652162, 978243, 1024826, 1537239, 1956486, 3074478, 3586891, 7173782, 10760673, 21521346]

約数ペア:

[(1, 21521346), (2, 10760673), (3, 7173782), (6, 3586891), (7, 3074478), (11, 1956486), (14, 1537239), (21, 1024826), (22, 978243), (33, 652162), (37, 581658), (42, 512413), (66, 326081), (74, 290829), (77, 279498), (111, 193886), (154, 139749), (222, 96943), (231, 93166), (259, 83094), (407, 52878), (462, 46583), (518, 41547), (777, 27698), (814, 26439), (1221, 17626), (1259, 17094), (1554, 13849), (2442, 8813), (2518, 8547), (2849, 7554), (3777, 5698)]