21000455488

素因数分解:

$2^6\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{127529}}^1$

素因数の和:127655

約数の個数: 56

約数和(自身を含む): 43535681280

約数和(自身を除く): 22535225792

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 83, 124, 166, 248, 332, 496, 664, 992, 1328, 1984, 2573, 2656, 5146, 5312, 10292, 20584, 41168, 82336, 127529, 164672, 255058, 510116, 1020232, 2040464, 3953399, 4080928, 7906798, 8161856, 10584907, 15813596, 21169814, 31627192, 42339628, 63254384, 84679256, 126508768, 169358512, 253017536, 328132117, 338717024, 656264234, 677434048, 1312528468, 2625056936, 5250113872, 10500227744, 21000455488]

約数ペア:

[(1, 21000455488), (2, 10500227744), (4, 5250113872), (8, 2625056936), (16, 1312528468), (31, 677434048), (32, 656264234), (62, 338717024), (64, 328132117), (83, 253017536), (124, 169358512), (166, 126508768), (248, 84679256), (332, 63254384), (496, 42339628), (664, 31627192), (992, 21169814), (1328, 15813596), (1984, 10584907), (2573, 8161856), (2656, 7906798), (5146, 4080928), (5312, 3953399), (10292, 2040464), (20584, 1020232), (41168, 510116), (82336, 255058), (127529, 164672)]