28557711

素因数分解:

$3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{197}}^1$

素因数の和:285

約数の個数: 64

約数和(自身を含む): 53222400

約数和(自身を除く): 24664689

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 59, 63, 91, 117, 177, 189, 197, 273, 351, 413, 531, 591, 767, 819, 1239, 1379, 1593, 1773, 2301, 2457, 2561, 3717, 4137, 5319, 5369, 6903, 7683, 11151, 11623, 12411, 16107, 17927, 20709, 23049, 34869, 37233, 48321, 53781, 69147, 81361, 104607, 144963, 151099, 161343, 244083, 313821, 453297, 484029, 732249, 1057693, 1359891, 2196747, 3173079, 4079673, 9519237, 28557711]

約数ペア:

[(1, 28557711), (3, 9519237), (7, 4079673), (9, 3173079), (13, 2196747), (21, 1359891), (27, 1057693), (39, 732249), (59, 484029), (63, 453297), (91, 313821), (117, 244083), (177, 161343), (189, 151099), (197, 144963), (273, 104607), (351, 81361), (413, 69147), (531, 53781), (591, 48321), (767, 37233), (819, 34869), (1239, 23049), (1379, 20709), (1593, 17927), (1773, 16107), (2301, 12411), (2457, 11623), (2561, 11151), (3717, 7683), (4137, 6903), (5319, 5369)]