28685313

素因数分解:

$3^3\times {\mathrm{67}}^1\times {\mathrm{101}}^1\times {\mathrm{157}}^1$

素因数の和:334

約数の個数: 32

約数和(自身を含む): 43835520

約数和(自身を除く): 15150207

約数列:

[1, 3, 9, 27, 67, 101, 157, 201, 303, 471, 603, 909, 1413, 1809, 2727, 4239, 6767, 10519, 15857, 20301, 31557, 47571, 60903, 94671, 142713, 182709, 284013, 428139, 1062419, 3187257, 9561771, 28685313]

約数ペア:

[(1, 28685313), (3, 9561771), (9, 3187257), (27, 1062419), (67, 428139), (101, 284013), (157, 182709), (201, 142713), (303, 94671), (471, 60903), (603, 47571), (909, 31557), (1413, 20301), (1809, 15857), (2727, 10519), (4239, 6767)]