21185696

素因数分解:

$2^5\times 7^1\times {\mathrm{271}}^1\times {\mathrm{349}}^1$

素因数の和:637

約数の個数: 48

約数和(自身を含む): 47980800

約数和(自身を除く): 26795104

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 112, 224, 271, 349, 542, 698, 1084, 1396, 1897, 2168, 2443, 2792, 3794, 4336, 4886, 5584, 7588, 8672, 9772, 11168, 15176, 19544, 30352, 39088, 60704, 78176, 94579, 189158, 378316, 662053, 756632, 1324106, 1513264, 2648212, 3026528, 5296424, 10592848, 21185696]

約数ペア:

[(1, 21185696), (2, 10592848), (4, 5296424), (7, 3026528), (8, 2648212), (14, 1513264), (16, 1324106), (28, 756632), (32, 662053), (56, 378316), (112, 189158), (224, 94579), (271, 78176), (349, 60704), (542, 39088), (698, 30352), (1084, 19544), (1396, 15176), (1897, 11168), (2168, 9772), (2443, 8672), (2792, 7588), (3794, 5584), (4336, 4886)]