21263496

素因数分解:

$2^3\times 3^1\times {\mathrm{29}}^1\times {\mathrm{137}}^1\times {\mathrm{223}}^1$

素因数の和:398

約数の個数: 64

約数和(自身を含む): 55641600

約数和(自身を除く): 34378104

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 29, 58, 87, 116, 137, 174, 223, 232, 274, 348, 411, 446, 548, 669, 696, 822, 892, 1096, 1338, 1644, 1784, 2676, 3288, 3973, 5352, 6467, 7946, 11919, 12934, 15892, 19401, 23838, 25868, 30551, 31784, 38802, 47676, 51736, 61102, 77604, 91653, 95352, 122204, 155208, 183306, 244408, 366612, 733224, 885979, 1771958, 2657937, 3543916, 5315874, 7087832, 10631748, 21263496]

約数ペア:

[(1, 21263496), (2, 10631748), (3, 7087832), (4, 5315874), (6, 3543916), (8, 2657937), (12, 1771958), (24, 885979), (29, 733224), (58, 366612), (87, 244408), (116, 183306), (137, 155208), (174, 122204), (223, 95352), (232, 91653), (274, 77604), (348, 61102), (411, 51736), (446, 47676), (548, 38802), (669, 31784), (696, 30551), (822, 25868), (892, 23838), (1096, 19401), (1338, 15892), (1644, 12934), (1784, 11919), (2676, 7946), (3288, 6467), (3973, 5352)]