20210958976

素因数分解:

$2^7\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{88657}}^1$

素因数の和:88821

約数の個数: 64

約数和(自身を含む): 43678250280

約数和(自身を除く): 23467291304

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 137, 208, 274, 416, 548, 832, 1096, 1664, 1781, 2192, 3562, 4384, 7124, 8768, 14248, 17536, 28496, 56992, 88657, 113984, 177314, 227968, 354628, 709256, 1152541, 1418512, 2305082, 2837024, 4610164, 5674048, 9220328, 11348096, 12146009, 18440656, 24292018, 36881312, 48584036, 73762624, 97168072, 147525248, 157898117, 194336144, 315796234, 388672288, 631592468, 777344576, 1263184936, 1554689152, 2526369872, 5052739744, 10105479488, 20210958976]

約数ペア:

[(1, 20210958976), (2, 10105479488), (4, 5052739744), (8, 2526369872), (13, 1554689152), (16, 1263184936), (26, 777344576), (32, 631592468), (52, 388672288), (64, 315796234), (104, 194336144), (128, 157898117), (137, 147525248), (208, 97168072), (274, 73762624), (416, 48584036), (548, 36881312), (832, 24292018), (1096, 18440656), (1664, 12146009), (1781, 11348096), (2192, 9220328), (3562, 5674048), (4384, 4610164), (7124, 2837024), (8768, 2305082), (14248, 1418512), (17536, 1152541), (28496, 709256), (56992, 354628), (88657, 227968), (113984, 177314)]