20698755

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17921}}^1$

素因数の和:17947

約数の個数: 32

約数和(自身を含む): 41292288

約数和(自身を除く): 20593533

約数列:

[1, 3, 5, 7, 11, 15, 21, 33, 35, 55, 77, 105, 165, 231, 385, 1155, 17921, 53763, 89605, 125447, 197131, 268815, 376341, 591393, 627235, 985655, 1379917, 1881705, 2956965, 4139751, 6899585, 20698755]

約数ペア:

[(1, 20698755), (3, 6899585), (5, 4139751), (7, 2956965), (11, 1881705), (15, 1379917), (21, 985655), (33, 627235), (35, 591393), (55, 376341), (77, 268815), (105, 197131), (165, 125447), (231, 89605), (385, 53763), (1155, 17921)]