20982108

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{157}}^1$

素因数の和:251

約数の個数: 96

約数和(自身を含む): 59175424

約数和(自身を除く): 38193316

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 37, 42, 43, 74, 84, 86, 111, 129, 148, 157, 172, 222, 258, 259, 301, 314, 444, 471, 516, 518, 602, 628, 777, 903, 942, 1036, 1099, 1204, 1554, 1591, 1806, 1884, 2198, 3108, 3182, 3297, 3612, 4396, 4773, 5809, 6364, 6594, 6751, 9546, 11137, 11618, 13188, 13502, 17427, 19092, 20253, 22274, 23236, 27004, 33411, 34854, 40506, 40663, 44548, 47257, 66822, 69708, 81012, 81326, 94514, 121989, 133644, 141771, 162652, 189028, 243978, 249787, 283542, 487956, 499574, 567084, 749361, 999148, 1498722, 1748509, 2997444, 3497018, 5245527, 6994036, 10491054, 20982108]

約数ペア:

[(1, 20982108), (2, 10491054), (3, 6994036), (4, 5245527), (6, 3497018), (7, 2997444), (12, 1748509), (14, 1498722), (21, 999148), (28, 749361), (37, 567084), (42, 499574), (43, 487956), (74, 283542), (84, 249787), (86, 243978), (111, 189028), (129, 162652), (148, 141771), (157, 133644), (172, 121989), (222, 94514), (258, 81326), (259, 81012), (301, 69708), (314, 66822), (444, 47257), (471, 44548), (516, 40663), (518, 40506), (602, 34854), (628, 33411), (777, 27004), (903, 23236), (942, 22274), (1036, 20253), (1099, 19092), (1204, 17427), (1554, 13502), (1591, 13188), (1806, 11618), (1884, 11137), (2198, 9546), (3108, 6751), (3182, 6594), (3297, 6364), (3612, 5809), (4396, 4773)]