21456864

素因数分解:

$2^5\times 3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{521}}^1$

素因数の和:561

約数の個数: 144

約数和(自身を含む): 71823024

約数和(自身を除く): 50366160

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 13, 16, 18, 22, 24, 26, 32, 33, 36, 39, 44, 48, 52, 66, 72, 78, 88, 96, 99, 104, 117, 132, 143, 144, 156, 176, 198, 208, 234, 264, 286, 288, 312, 352, 396, 416, 429, 468, 521, 528, 572, 624, 792, 858, 936, 1042, 1056, 1144, 1248, 1287, 1563, 1584, 1716, 1872, 2084, 2288, 2574, 3126, 3168, 3432, 3744, 4168, 4576, 4689, 5148, 5731, 6252, 6773, 6864, 8336, 9378, 10296, 11462, 12504, 13546, 13728, 16672, 17193, 18756, 20319, 20592, 22924, 25008, 27092, 34386, 37512, 40638, 41184, 45848, 50016, 51579, 54184, 60957, 68772, 74503, 75024, 81276, 91696, 103158, 108368, 121914, 137544, 149006, 150048, 162552, 183392, 206316, 216736, 223509, 243828, 275088, 298012, 325104, 412632, 447018, 487656, 550176, 596024, 650208, 670527, 825264, 894036, 975312, 1192048, 1341054, 1650528, 1788072, 1950624, 2384096, 2682108, 3576144, 5364216, 7152288, 10728432, 21456864]

約数ペア:

[(1, 21456864), (2, 10728432), (3, 7152288), (4, 5364216), (6, 3576144), (8, 2682108), (9, 2384096), (11, 1950624), (12, 1788072), (13, 1650528), (16, 1341054), (18, 1192048), (22, 975312), (24, 894036), (26, 825264), (32, 670527), (33, 650208), (36, 596024), (39, 550176), (44, 487656), (48, 447018), (52, 412632), (66, 325104), (72, 298012), (78, 275088), (88, 243828), (96, 223509), (99, 216736), (104, 206316), (117, 183392), (132, 162552), (143, 150048), (144, 149006), (156, 137544), (176, 121914), (198, 108368), (208, 103158), (234, 91696), (264, 81276), (286, 75024), (288, 74503), (312, 68772), (352, 60957), (396, 54184), (416, 51579), (429, 50016), (468, 45848), (521, 41184), (528, 40638), (572, 37512), (624, 34386), (792, 27092), (858, 25008), (936, 22924), (1042, 20592), (1056, 20319), (1144, 18756), (1248, 17193), (1287, 16672), (1563, 13728), (1584, 13546), (1716, 12504), (1872, 11462), (2084, 10296), (2288, 9378), (2574, 8336), (3126, 6864), (3168, 6773), (3432, 6252), (3744, 5731), (4168, 5148), (4576, 4689)]