21922670

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{401}}^1$

素因数の和:497

約数の個数: 64

約数和(自身を含む): 50015232

約数和(自身を除く): 28092562

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 70, 71, 77, 110, 142, 154, 355, 385, 401, 497, 710, 770, 781, 802, 994, 1562, 2005, 2485, 2807, 3905, 4010, 4411, 4970, 5467, 5614, 7810, 8822, 10934, 14035, 22055, 27335, 28070, 28471, 30877, 44110, 54670, 56942, 61754, 142355, 154385, 199297, 284710, 308770, 313181, 398594, 626362, 996485, 1565905, 1992970, 2192267, 3131810, 4384534, 10961335, 21922670]

約数ペア:

[(1, 21922670), (2, 10961335), (5, 4384534), (7, 3131810), (10, 2192267), (11, 1992970), (14, 1565905), (22, 996485), (35, 626362), (55, 398594), (70, 313181), (71, 308770), (77, 284710), (110, 199297), (142, 154385), (154, 142355), (355, 61754), (385, 56942), (401, 54670), (497, 44110), (710, 30877), (770, 28471), (781, 28070), (802, 27335), (994, 22055), (1562, 14035), (2005, 10934), (2485, 8822), (2807, 7810), (3905, 5614), (4010, 5467), (4411, 4970)]