21216473696

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{101}}^1\times {\mathrm{127}}^2$

素因数の和:413

約数の個数: 144

約数和(自身を含む): 47637171792

約数和(自身を除く): 26420698096

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 37, 44, 74, 88, 101, 127, 148, 176, 202, 254, 296, 352, 404, 407, 508, 592, 808, 814, 1016, 1111, 1184, 1397, 1616, 1628, 2032, 2222, 2794, 3232, 3256, 3737, 4064, 4444, 4699, 5588, 6512, 7474, 8888, 9398, 11176, 12827, 13024, 14948, 16129, 17776, 18796, 22352, 25654, 29896, 32258, 35552, 37592, 41107, 44704, 51308, 51689, 59792, 64516, 75184, 82214, 102616, 103378, 119584, 129032, 141097, 150368, 164428, 177419, 205232, 206756, 258064, 282194, 328856, 354838, 410464, 413512, 474599, 516128, 564388, 596773, 657712, 709676, 827024, 949198, 1128776, 1193546, 1315424, 1419352, 1629029, 1654048, 1898396, 2257552, 2387092, 2838704, 3258058, 3796792, 4515104, 4774184, 5220589, 5677408, 6516116, 6564503, 7593584, 9548368, 10441178, 13032232, 13129006, 15187168, 17919319, 19096736, 20882356, 26064464, 26258012, 35838638, 41764712, 52128928, 52516024, 60274073, 71677276, 83529424, 105032048, 120548146, 143354552, 167058848, 210064096, 241096292, 286709104, 482192584, 573418208, 663014803, 964385168, 1326029606, 1928770336, 2652059212, 5304118424, 10608236848, 21216473696]

約数ペア:

[(1, 21216473696), (2, 10608236848), (4, 5304118424), (8, 2652059212), (11, 1928770336), (16, 1326029606), (22, 964385168), (32, 663014803), (37, 573418208), (44, 482192584), (74, 286709104), (88, 241096292), (101, 210064096), (127, 167058848), (148, 143354552), (176, 120548146), (202, 105032048), (254, 83529424), (296, 71677276), (352, 60274073), (404, 52516024), (407, 52128928), (508, 41764712), (592, 35838638), (808, 26258012), (814, 26064464), (1016, 20882356), (1111, 19096736), (1184, 17919319), (1397, 15187168), (1616, 13129006), (1628, 13032232), (2032, 10441178), (2222, 9548368), (2794, 7593584), (3232, 6564503), (3256, 6516116), (3737, 5677408), (4064, 5220589), (4444, 4774184), (4699, 4515104), (5588, 3796792), (6512, 3258058), (7474, 2838704), (8888, 2387092), (9398, 2257552), (11176, 1898396), (12827, 1654048), (13024, 1629029), (14948, 1419352), (16129, 1315424), (17776, 1193546), (18796, 1128776), (22352, 949198), (25654, 827024), (29896, 709676), (32258, 657712), (35552, 596773), (37592, 564388), (41107, 516128), (44704, 474599), (51308, 413512), (51689, 410464), (59792, 354838), (64516, 328856), (75184, 282194), (82214, 258064), (102616, 206756), (103378, 205232), (119584, 177419), (129032, 164428), (141097, 150368)]