21051264

素因数分解:

$2^7\times 3^1\times {\mathrm{13}}^1\times {\mathrm{4217}}^1$

素因数の和:4247

約数の個数: 64

約数和(自身を含む): 60233040

約数和(自身を除く): 39181776

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 32, 39, 48, 52, 64, 78, 96, 104, 128, 156, 192, 208, 312, 384, 416, 624, 832, 1248, 1664, 2496, 4217, 4992, 8434, 12651, 16868, 25302, 33736, 50604, 54821, 67472, 101208, 109642, 134944, 164463, 202416, 219284, 269888, 328926, 404832, 438568, 539776, 657852, 809664, 877136, 1315704, 1619328, 1754272, 2631408, 3508544, 5262816, 7017088, 10525632, 21051264]

約数ペア:

[(1, 21051264), (2, 10525632), (3, 7017088), (4, 5262816), (6, 3508544), (8, 2631408), (12, 1754272), (13, 1619328), (16, 1315704), (24, 877136), (26, 809664), (32, 657852), (39, 539776), (48, 438568), (52, 404832), (64, 328926), (78, 269888), (96, 219284), (104, 202416), (128, 164463), (156, 134944), (192, 109642), (208, 101208), (312, 67472), (384, 54821), (416, 50604), (624, 33736), (832, 25302), (1248, 16868), (1664, 12651), (2496, 8434), (4217, 4992)]