20913344

素因数分解:

$2^6\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{127}}^1$

素因数の和:253

約数の個数: 56

約数和(自身を含む): 43696128

約数和(自身を除く): 22782784

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 83, 124, 127, 166, 248, 254, 332, 496, 508, 664, 992, 1016, 1328, 1984, 2032, 2573, 2656, 3937, 4064, 5146, 5312, 7874, 8128, 10292, 10541, 15748, 20584, 21082, 31496, 41168, 42164, 62992, 82336, 84328, 125984, 164672, 168656, 251968, 326771, 337312, 653542, 674624, 1307084, 2614168, 5228336, 10456672, 20913344]

約数ペア:

[(1, 20913344), (2, 10456672), (4, 5228336), (8, 2614168), (16, 1307084), (31, 674624), (32, 653542), (62, 337312), (64, 326771), (83, 251968), (124, 168656), (127, 164672), (166, 125984), (248, 84328), (254, 82336), (332, 62992), (496, 42164), (508, 41168), (664, 31496), (992, 21082), (1016, 20584), (1328, 15748), (1984, 10541), (2032, 10292), (2573, 8128), (2656, 7874), (3937, 5312), (4064, 5146)]