28337715

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{191}}^1$

素因数の和:369

約数の個数: 64

約数和(自身を含む): 58245120

約数和(自身を除く): 29907405

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 105, 135, 157, 189, 191, 315, 471, 573, 785, 945, 955, 1099, 1337, 1413, 1719, 2355, 2865, 3297, 4011, 4239, 5157, 5495, 6685, 7065, 8595, 9891, 12033, 16485, 20055, 21195, 25785, 29673, 29987, 36099, 49455, 60165, 89961, 148365, 149935, 180495, 209909, 269883, 449805, 629727, 809649, 1049545, 1349415, 1889181, 3148635, 4048245, 5667543, 9445905, 28337715]

約数ペア:

[(1, 28337715), (3, 9445905), (5, 5667543), (7, 4048245), (9, 3148635), (15, 1889181), (21, 1349415), (27, 1049545), (35, 809649), (45, 629727), (63, 449805), (105, 269883), (135, 209909), (157, 180495), (189, 149935), (191, 148365), (315, 89961), (471, 60165), (573, 49455), (785, 36099), (945, 29987), (955, 29673), (1099, 25785), (1337, 21195), (1413, 20055), (1719, 16485), (2355, 12033), (2865, 9891), (3297, 8595), (4011, 7065), (4239, 6685), (5157, 5495)]