21609616

素因数分解:

$2^4\times 7^1\times {\mathrm{61}}^1\times {\mathrm{3163}}^1$

素因数の和:3239

約数の個数: 40

約数和(自身を含む): 48649664

約数和(自身を除く): 27040048

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 61, 112, 122, 244, 427, 488, 854, 976, 1708, 3163, 3416, 6326, 6832, 12652, 22141, 25304, 44282, 50608, 88564, 177128, 192943, 354256, 385886, 771772, 1350601, 1543544, 2701202, 3087088, 5402404, 10804808, 21609616]

約数ペア:

[(1, 21609616), (2, 10804808), (4, 5402404), (7, 3087088), (8, 2701202), (14, 1543544), (16, 1350601), (28, 771772), (56, 385886), (61, 354256), (112, 192943), (122, 177128), (244, 88564), (427, 50608), (488, 44282), (854, 25304), (976, 22141), (1708, 12652), (3163, 6832), (3416, 6326)]