2021138245

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{197}}^1\times {\mathrm{401}}^1$

素因数の和:670

約数の個数: 64

約数和(自身を含む): 3025921536

約数和(自身を除く): 1004783291

約数列:

[1, 5, 7, 17, 35, 43, 85, 119, 197, 215, 301, 401, 595, 731, 985, 1379, 1505, 2005, 2807, 3349, 3655, 5117, 6817, 6895, 8471, 14035, 16745, 17243, 23443, 25585, 34085, 42355, 47719, 59297, 78997, 86215, 117215, 120701, 144007, 238595, 293131, 296485, 394985, 552979, 603505, 720035, 1008049, 1342949, 1465655, 2051917, 2764895, 3396871, 5040245, 6714745, 9400643, 10259585, 16984355, 23778097, 47003215, 57746807, 118890485, 288734035, 404227649, 2021138245]

約数ペア:

[(1, 2021138245), (5, 404227649), (7, 288734035), (17, 118890485), (35, 57746807), (43, 47003215), (85, 23778097), (119, 16984355), (197, 10259585), (215, 9400643), (301, 6714745), (401, 5040245), (595, 3396871), (731, 2764895), (985, 2051917), (1379, 1465655), (1505, 1342949), (2005, 1008049), (2807, 720035), (3349, 603505), (3655, 552979), (5117, 394985), (6817, 296485), (6895, 293131), (8471, 238595), (14035, 144007), (16745, 120701), (17243, 117215), (23443, 86215), (25585, 78997), (34085, 59297), (42355, 47719)]