21579003

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{2381}}^1$

素因数の和:2459

約数の個数: 24

約数和(自身を含む): 33443280

約数和(自身を除く): 11864277

約数列:

[1, 3, 9, 19, 53, 57, 159, 171, 477, 1007, 2381, 3021, 7143, 9063, 21429, 45239, 126193, 135717, 378579, 407151, 1135737, 2397667, 7193001, 21579003]

約数ペア:

[(1, 21579003), (3, 7193001), (9, 2397667), (19, 1135737), (53, 407151), (57, 378579), (159, 135717), (171, 126193), (477, 45239), (1007, 21429), (2381, 9063), (3021, 7143)]