18966255

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{16421}}^1$

素因数の和:16447

約数の個数: 32

約数和(自身を含む): 37836288

約数和(自身を除く): 18870033

約数列:

[1, 3, 5, 7, 11, 15, 21, 33, 35, 55, 77, 105, 165, 231, 385, 1155, 16421, 49263, 82105, 114947, 180631, 246315, 344841, 541893, 574735, 903155, 1264417, 1724205, 2709465, 3793251, 6322085, 18966255]

約数ペア:

[(1, 18966255), (3, 6322085), (5, 3793251), (7, 2709465), (11, 1724205), (15, 1264417), (21, 903155), (33, 574735), (35, 541893), (55, 344841), (77, 246315), (105, 180631), (165, 114947), (231, 82105), (385, 49263), (1155, 16421)]