20987652

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{249853}}^1$

素因数の和:249867

約数の個数: 24

約数和(自身を含む): 55967296

約数和(自身を除く): 34979644

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 249853, 499706, 749559, 999412, 1499118, 1748971, 2998236, 3497942, 5246913, 6995884, 10493826, 20987652]

約数ペア:

[(1, 20987652), (2, 10493826), (3, 6995884), (4, 5246913), (6, 3497942), (7, 2998236), (12, 1748971), (14, 1499118), (21, 999412), (28, 749559), (42, 499706), (84, 249853)]