21082425

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{3089}}^1$

素因数の和:3122

約数の個数: 48

約数和(自身を含む): 42913920

約数和(自身を除く): 21831495

約数列:

[1, 3, 5, 7, 13, 15, 21, 25, 35, 39, 65, 75, 91, 105, 175, 195, 273, 325, 455, 525, 975, 1365, 2275, 3089, 6825, 9267, 15445, 21623, 40157, 46335, 64869, 77225, 108115, 120471, 200785, 231675, 281099, 324345, 540575, 602355, 843297, 1003925, 1405495, 1621725, 3011775, 4216485, 7027475, 21082425]

約数ペア:

[(1, 21082425), (3, 7027475), (5, 4216485), (7, 3011775), (13, 1621725), (15, 1405495), (21, 1003925), (25, 843297), (35, 602355), (39, 540575), (65, 324345), (75, 281099), (91, 231675), (105, 200785), (175, 120471), (195, 108115), (273, 77225), (325, 64869), (455, 46335), (525, 40157), (975, 21623), (1365, 15445), (2275, 9267), (3089, 6825)]