21403544

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{337}}^1\times {\mathrm{467}}^1$

素因数の和:827

約数の個数: 32

約数和(自身を含む): 42709680

約数和(自身を除く): 21306136

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 337, 467, 674, 934, 1348, 1868, 2696, 3736, 5729, 7939, 11458, 15878, 22916, 31756, 45832, 63512, 157379, 314758, 629516, 1259032, 2675443, 5350886, 10701772, 21403544]

約数ペア:

[(1, 21403544), (2, 10701772), (4, 5350886), (8, 2675443), (17, 1259032), (34, 629516), (68, 314758), (136, 157379), (337, 63512), (467, 45832), (674, 31756), (934, 22916), (1348, 15878), (1868, 11458), (2696, 7939), (3736, 5729)]