21864915

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{107}}^1\times {\mathrm{239}}^1$

素因数の和:376

約数の個数: 48

約数和(自身を含む): 40435200

約数和(自身を除く): 18570285

約数列:

[1, 3, 5, 9, 15, 19, 45, 57, 95, 107, 171, 239, 285, 321, 535, 717, 855, 963, 1195, 1605, 2033, 2151, 3585, 4541, 4815, 6099, 10165, 10755, 13623, 18297, 22705, 25573, 30495, 40869, 68115, 76719, 91485, 127865, 204345, 230157, 383595, 485887, 1150785, 1457661, 2429435, 4372983, 7288305, 21864915]

約数ペア:

[(1, 21864915), (3, 7288305), (5, 4372983), (9, 2429435), (15, 1457661), (19, 1150785), (45, 485887), (57, 383595), (95, 230157), (107, 204345), (171, 127865), (239, 91485), (285, 76719), (321, 68115), (535, 40869), (717, 30495), (855, 25573), (963, 22705), (1195, 18297), (1605, 13623), (2033, 10755), (2151, 10165), (3585, 6099), (4541, 4815)]