21000908016

素因数分解:

$2^4\times 3^3\times {\mathrm{11}}^1\times {\mathrm{4419383}}^1$

素因数の和:4419411

約数の個数: 80

約数和(自身を含む): 65760433920

約数和(自身を除く): 44759525904

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 16, 18, 22, 24, 27, 33, 36, 44, 48, 54, 66, 72, 88, 99, 108, 132, 144, 176, 198, 216, 264, 297, 396, 432, 528, 594, 792, 1188, 1584, 2376, 4752, 4419383, 8838766, 13258149, 17677532, 26516298, 35355064, 39774447, 48613213, 53032596, 70710128, 79548894, 97226426, 106065192, 119323341, 145839639, 159097788, 194452852, 212130384, 238646682, 291679278, 318195576, 388905704, 437518917, 477293364, 583358556, 636391152, 777811408, 875037834, 954586728, 1166717112, 1312556751, 1750075668, 1909173456, 2333434224, 2625113502, 3500151336, 5250227004, 7000302672, 10500454008, 21000908016]

約数ペア:

[(1, 21000908016), (2, 10500454008), (3, 7000302672), (4, 5250227004), (6, 3500151336), (8, 2625113502), (9, 2333434224), (11, 1909173456), (12, 1750075668), (16, 1312556751), (18, 1166717112), (22, 954586728), (24, 875037834), (27, 777811408), (33, 636391152), (36, 583358556), (44, 477293364), (48, 437518917), (54, 388905704), (66, 318195576), (72, 291679278), (88, 238646682), (99, 212130384), (108, 194452852), (132, 159097788), (144, 145839639), (176, 119323341), (198, 106065192), (216, 97226426), (264, 79548894), (297, 70710128), (396, 53032596), (432, 48613213), (528, 39774447), (594, 35355064), (792, 26516298), (1188, 17677532), (1584, 13258149), (2376, 8838766), (4752, 4419383)]