21137655

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{18301}}^1$

素因数の和:18327

約数の個数: 32

約数和(自身を含む): 42167808

約数和(自身を除く): 21030153

約数列:

[1, 3, 5, 7, 11, 15, 21, 33, 35, 55, 77, 105, 165, 231, 385, 1155, 18301, 54903, 91505, 128107, 201311, 274515, 384321, 603933, 640535, 1006555, 1409177, 1921605, 3019665, 4227531, 7045885, 21137655]

約数ペア:

[(1, 21137655), (3, 7045885), (5, 4227531), (7, 3019665), (11, 1921605), (15, 1409177), (21, 1006555), (33, 640535), (35, 603933), (55, 384321), (77, 274515), (105, 201311), (165, 128107), (231, 91505), (385, 54903), (1155, 18301)]