21043428

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{479}}^1\times {\mathrm{523}}^1$

素因数の和:1016

約数の個数: 48

約数和(自身を含む): 56340480

約数和(自身を除く): 35297052

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 479, 523, 958, 1046, 1437, 1569, 1916, 2092, 2874, 3138, 3353, 3661, 5748, 6276, 6706, 7322, 10059, 10983, 13412, 14644, 20118, 21966, 40236, 43932, 250517, 501034, 751551, 1002068, 1503102, 1753619, 3006204, 3507238, 5260857, 7014476, 10521714, 21043428]

約数ペア:

[(1, 21043428), (2, 10521714), (3, 7014476), (4, 5260857), (6, 3507238), (7, 3006204), (12, 1753619), (14, 1503102), (21, 1002068), (28, 751551), (42, 501034), (84, 250517), (479, 43932), (523, 40236), (958, 21966), (1046, 20118), (1437, 14644), (1569, 13412), (1916, 10983), (2092, 10059), (2874, 7322), (3138, 6706), (3353, 6276), (3661, 5748)]