21115776

素因数分解:

$2^7\times 3^1\times {\mathrm{11}}^1\times {\mathrm{4999}}^1$

素因数の和:5027

約数の個数: 64

約数和(自身を含む): 61200000

約数和(自身を除く): 40084224

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 16, 22, 24, 32, 33, 44, 48, 64, 66, 88, 96, 128, 132, 176, 192, 264, 352, 384, 528, 704, 1056, 1408, 2112, 4224, 4999, 9998, 14997, 19996, 29994, 39992, 54989, 59988, 79984, 109978, 119976, 159968, 164967, 219956, 239952, 319936, 329934, 439912, 479904, 639872, 659868, 879824, 959808, 1319736, 1759648, 1919616, 2639472, 3519296, 5278944, 7038592, 10557888, 21115776]

約数ペア:

[(1, 21115776), (2, 10557888), (3, 7038592), (4, 5278944), (6, 3519296), (8, 2639472), (11, 1919616), (12, 1759648), (16, 1319736), (22, 959808), (24, 879824), (32, 659868), (33, 639872), (44, 479904), (48, 439912), (64, 329934), (66, 319936), (88, 239952), (96, 219956), (128, 164967), (132, 159968), (176, 119976), (192, 109978), (264, 79984), (352, 59988), (384, 54989), (528, 39992), (704, 29994), (1056, 19996), (1408, 14997), (2112, 9998), (4224, 4999)]