21491844272

素因数分解:

$2^4\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{317}}^1\times {\mathrm{1613}}^1$

素因数の和:2046

約数の個数: 80

約数和(自身を含む): 43531981632

約数和(自身を除く): 22040137360

約数列:

[1, 2, 4, 8, 16, 37, 71, 74, 142, 148, 284, 296, 317, 568, 592, 634, 1136, 1268, 1613, 2536, 2627, 3226, 5072, 5254, 6452, 10508, 11729, 12904, 21016, 22507, 23458, 25808, 42032, 45014, 46916, 59681, 90028, 93832, 114523, 119362, 180056, 187664, 229046, 238724, 360112, 458092, 477448, 511321, 832759, 916184, 954896, 1022642, 1665518, 1832368, 2045284, 3331036, 4090568, 4237351, 6662072, 8181136, 8474702, 13324144, 16949404, 18918877, 33898808, 36303791, 37837754, 67797616, 72607582, 75675508, 145215164, 151351016, 290430328, 302702032, 580860656, 1343240267, 2686480534, 5372961068, 10745922136, 21491844272]

約数ペア:

[(1, 21491844272), (2, 10745922136), (4, 5372961068), (8, 2686480534), (16, 1343240267), (37, 580860656), (71, 302702032), (74, 290430328), (142, 151351016), (148, 145215164), (284, 75675508), (296, 72607582), (317, 67797616), (568, 37837754), (592, 36303791), (634, 33898808), (1136, 18918877), (1268, 16949404), (1613, 13324144), (2536, 8474702), (2627, 8181136), (3226, 6662072), (5072, 4237351), (5254, 4090568), (6452, 3331036), (10508, 2045284), (11729, 1832368), (12904, 1665518), (21016, 1022642), (22507, 954896), (23458, 916184), (25808, 832759), (42032, 511321), (45014, 477448), (46916, 458092), (59681, 360112), (90028, 238724), (93832, 229046), (114523, 187664), (119362, 180056)]