21509244

素因数分解:

$2^2\times 3^2\times {\mathrm{439}}^1\times {\mathrm{1361}}^1$

素因数の和:1810

約数の個数: 36

約数和(自身を含む): 54534480

約数和(自身を除く): 33025236

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 439, 878, 1317, 1361, 1756, 2634, 2722, 3951, 4083, 5268, 5444, 7902, 8166, 12249, 15804, 16332, 24498, 48996, 597479, 1194958, 1792437, 2389916, 3584874, 5377311, 7169748, 10754622, 21509244]

約数ペア:

[(1, 21509244), (2, 10754622), (3, 7169748), (4, 5377311), (6, 3584874), (9, 2389916), (12, 1792437), (18, 1194958), (36, 597479), (439, 48996), (878, 24498), (1317, 16332), (1361, 15804), (1756, 12249), (2634, 8166), (2722, 7902), (3951, 5444), (4083, 5268)]