21416838

素因数分解:

$2^1\times 3^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{257}}^1$

素因数の和:341

約数の個数: 64

約数和(自身を含む): 49040640

約数和(自身を除く): 27623802

約数列:

[1, 2, 3, 6, 17, 19, 34, 38, 43, 51, 57, 86, 102, 114, 129, 257, 258, 323, 514, 646, 731, 771, 817, 969, 1462, 1542, 1634, 1938, 2193, 2451, 4369, 4386, 4883, 4902, 8738, 9766, 11051, 13107, 13889, 14649, 22102, 26214, 27778, 29298, 33153, 41667, 66306, 83011, 83334, 166022, 187867, 209969, 249033, 375734, 419938, 498066, 563601, 629907, 1127202, 1259814, 3569473, 7138946, 10708419, 21416838]

約数ペア:

[(1, 21416838), (2, 10708419), (3, 7138946), (6, 3569473), (17, 1259814), (19, 1127202), (34, 629907), (38, 563601), (43, 498066), (51, 419938), (57, 375734), (86, 249033), (102, 209969), (114, 187867), (129, 166022), (257, 83334), (258, 83011), (323, 66306), (514, 41667), (646, 33153), (731, 29298), (771, 27778), (817, 26214), (969, 22102), (1462, 14649), (1542, 13889), (1634, 13107), (1938, 11051), (2193, 9766), (2451, 8738), (4369, 4902), (4386, 4883)]