20986488

素因数分解:

$2^3\times 3^2\times {\mathrm{19}}^1\times {\mathrm{23}}^2\times {\mathrm{29}}^1$

素因数の和:106

約数の個数: 144

約数和(自身を含む): 64701000

約数和(自身を除く): 43714512

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 19, 23, 24, 29, 36, 38, 46, 57, 58, 69, 72, 76, 87, 92, 114, 116, 138, 152, 171, 174, 184, 207, 228, 232, 261, 276, 342, 348, 414, 437, 456, 522, 529, 551, 552, 667, 684, 696, 828, 874, 1044, 1058, 1102, 1311, 1334, 1368, 1587, 1653, 1656, 1748, 2001, 2088, 2116, 2204, 2622, 2668, 3174, 3306, 3496, 3933, 4002, 4232, 4408, 4761, 4959, 5244, 5336, 6003, 6348, 6612, 7866, 8004, 9522, 9918, 10051, 10488, 12006, 12673, 12696, 13224, 15341, 15732, 16008, 19044, 19836, 20102, 24012, 25346, 30153, 30682, 31464, 38019, 38088, 39672, 40204, 46023, 48024, 50692, 60306, 61364, 76038, 80408, 90459, 92046, 101384, 114057, 120612, 122728, 138069, 152076, 180918, 184092, 228114, 241224, 276138, 291479, 304152, 361836, 368184, 456228, 552276, 582958, 723672, 874437, 912456, 1104552, 1165916, 1748874, 2331832, 2623311, 3497748, 5246622, 6995496, 10493244, 20986488]

約数ペア:

[(1, 20986488), (2, 10493244), (3, 6995496), (4, 5246622), (6, 3497748), (8, 2623311), (9, 2331832), (12, 1748874), (18, 1165916), (19, 1104552), (23, 912456), (24, 874437), (29, 723672), (36, 582958), (38, 552276), (46, 456228), (57, 368184), (58, 361836), (69, 304152), (72, 291479), (76, 276138), (87, 241224), (92, 228114), (114, 184092), (116, 180918), (138, 152076), (152, 138069), (171, 122728), (174, 120612), (184, 114057), (207, 101384), (228, 92046), (232, 90459), (261, 80408), (276, 76038), (342, 61364), (348, 60306), (414, 50692), (437, 48024), (456, 46023), (522, 40204), (529, 39672), (551, 38088), (552, 38019), (667, 31464), (684, 30682), (696, 30153), (828, 25346), (874, 24012), (1044, 20102), (1058, 19836), (1102, 19044), (1311, 16008), (1334, 15732), (1368, 15341), (1587, 13224), (1653, 12696), (1656, 12673), (1748, 12006), (2001, 10488), (2088, 10051), (2116, 9918), (2204, 9522), (2622, 8004), (2668, 7866), (3174, 6612), (3306, 6348), (3496, 6003), (3933, 5336), (4002, 5244), (4232, 4959), (4408, 4761)]