20407816

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17839}}^1$

素因数の和:17869

約数の個数: 32

約数和(自身を含む): 44956800

約数和(自身を除く): 24548984

約数列:

[1, 2, 4, 8, 11, 13, 22, 26, 44, 52, 88, 104, 143, 286, 572, 1144, 17839, 35678, 71356, 142712, 196229, 231907, 392458, 463814, 784916, 927628, 1569832, 1855256, 2550977, 5101954, 10203908, 20407816]

約数ペア:

[(1, 20407816), (2, 10203908), (4, 5101954), (8, 2550977), (11, 1855256), (13, 1569832), (22, 927628), (26, 784916), (44, 463814), (52, 392458), (88, 231907), (104, 196229), (143, 142712), (286, 71356), (572, 35678), (1144, 17839)]