51220323

素因数分解:

$3^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{347}}^1$

素因数の和:445

約数の個数: 64

約数和(自身を含む): 96215040

約数和(自身を除く): 44994717

約数列:

[1, 3, 7, 9, 11, 21, 27, 33, 63, 71, 77, 99, 189, 213, 231, 297, 347, 497, 639, 693, 781, 1041, 1491, 1917, 2079, 2343, 2429, 3123, 3817, 4473, 5467, 7029, 7287, 9369, 11451, 13419, 16401, 21087, 21861, 24637, 26719, 34353, 49203, 65583, 73911, 80157, 103059, 147609, 172459, 221733, 240471, 271007, 517377, 665199, 721413, 813021, 1552131, 1897049, 2439063, 4656393, 5691147, 7317189, 17073441, 51220323]

約数ペア:

[(1, 51220323), (3, 17073441), (7, 7317189), (9, 5691147), (11, 4656393), (21, 2439063), (27, 1897049), (33, 1552131), (63, 813021), (71, 721413), (77, 665199), (99, 517377), (189, 271007), (213, 240471), (231, 221733), (297, 172459), (347, 147609), (497, 103059), (639, 80157), (693, 73911), (781, 65583), (1041, 49203), (1491, 34353), (1917, 26719), (2079, 24637), (2343, 21861), (2429, 21087), (3123, 16401), (3817, 13419), (4473, 11451), (5467, 9369), (7029, 7287)]