19888022

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{971}}^1$

素因数の和:1017

約数の個数: 48

約数和(自身を含む): 39890880

約数和(自身を除く): 20002858

約数列:

[1, 2, 7, 11, 14, 19, 22, 38, 49, 77, 98, 133, 154, 209, 266, 418, 539, 931, 971, 1078, 1463, 1862, 1942, 2926, 6797, 10241, 10681, 13594, 18449, 20482, 21362, 36898, 47579, 74767, 95158, 129143, 149534, 202939, 258286, 405878, 523369, 904001, 1046738, 1420573, 1808002, 2841146, 9944011, 19888022]

約数ペア:

[(1, 19888022), (2, 9944011), (7, 2841146), (11, 1808002), (14, 1420573), (19, 1046738), (22, 904001), (38, 523369), (49, 405878), (77, 258286), (98, 202939), (133, 149534), (154, 129143), (209, 95158), (266, 74767), (418, 47579), (539, 36898), (931, 21362), (971, 20482), (1078, 18449), (1463, 13594), (1862, 10681), (1942, 10241), (2926, 6797)]