21652444

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{239}}^1$

素因数の和:354

約数の個数: 48

約数和(自身を含む): 43545600

約数和(自身を除く): 21893156

約数列:

[1, 2, 4, 11, 22, 29, 44, 58, 71, 116, 142, 239, 284, 319, 478, 638, 781, 956, 1276, 1562, 2059, 2629, 3124, 4118, 5258, 6931, 8236, 10516, 13862, 16969, 22649, 27724, 33938, 45298, 67876, 76241, 90596, 152482, 186659, 304964, 373318, 492101, 746636, 984202, 1968404, 5413111, 10826222, 21652444]

約数ペア:

[(1, 21652444), (2, 10826222), (4, 5413111), (11, 1968404), (22, 984202), (29, 746636), (44, 492101), (58, 373318), (71, 304964), (116, 186659), (142, 152482), (239, 90596), (284, 76241), (319, 67876), (478, 45298), (638, 33938), (781, 27724), (956, 22649), (1276, 16969), (1562, 13862), (2059, 10516), (2629, 8236), (3124, 6931), (4118, 5258)]