21119840

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{173}}^1$

素因数の和:304

約数の個数: 96

約数和(自身を含む): 57879360

約数和(自身を除く): 36759520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 109, 112, 140, 160, 173, 218, 224, 280, 346, 436, 545, 560, 692, 763, 865, 872, 1090, 1120, 1211, 1384, 1526, 1730, 1744, 2180, 2422, 2768, 3052, 3460, 3488, 3815, 4360, 4844, 5536, 6055, 6104, 6920, 7630, 8720, 9688, 12110, 12208, 13840, 15260, 17440, 18857, 19376, 24220, 24416, 27680, 30520, 37714, 38752, 48440, 61040, 75428, 94285, 96880, 122080, 131999, 150856, 188570, 193760, 263998, 301712, 377140, 527996, 603424, 659995, 754280, 1055992, 1319990, 1508560, 2111984, 2639980, 3017120, 4223968, 5279960, 10559920, 21119840]

約数ペア:

[(1, 21119840), (2, 10559920), (4, 5279960), (5, 4223968), (7, 3017120), (8, 2639980), (10, 2111984), (14, 1508560), (16, 1319990), (20, 1055992), (28, 754280), (32, 659995), (35, 603424), (40, 527996), (56, 377140), (70, 301712), (80, 263998), (109, 193760), (112, 188570), (140, 150856), (160, 131999), (173, 122080), (218, 96880), (224, 94285), (280, 75428), (346, 61040), (436, 48440), (545, 38752), (560, 37714), (692, 30520), (763, 27680), (865, 24416), (872, 24220), (1090, 19376), (1120, 18857), (1211, 17440), (1384, 15260), (1526, 13840), (1730, 12208), (1744, 12110), (2180, 9688), (2422, 8720), (2768, 7630), (3052, 6920), (3460, 6104), (3488, 6055), (3815, 5536), (4360, 4844)]