21595189

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{109}}^1$

素因数の和:241

約数の個数: 32

約数和(自身を含む): 28385280

約数和(自身を除く): 6790091

約数列:

[1, 7, 11, 31, 77, 83, 109, 217, 341, 581, 763, 913, 1199, 2387, 2573, 3379, 6391, 8393, 9047, 18011, 23653, 28303, 37169, 63329, 99517, 198121, 260183, 280457, 696619, 1963199, 3085027, 21595189]

約数ペア:

[(1, 21595189), (7, 3085027), (11, 1963199), (31, 696619), (77, 280457), (83, 260183), (109, 198121), (217, 99517), (341, 63329), (581, 37169), (763, 28303), (913, 23653), (1199, 18011), (2387, 9047), (2573, 8393), (3379, 6391)]