20861126

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{349}}^1$

素因数の和:405

約数の個数: 48

約数和(自身を含む): 39102000

約数和(自身を除く): 18240874

約数列:

[1, 2, 11, 13, 19, 22, 26, 38, 121, 143, 209, 242, 247, 286, 349, 418, 494, 698, 1573, 2299, 2717, 3146, 3839, 4537, 4598, 5434, 6631, 7678, 9074, 13262, 29887, 42229, 49907, 59774, 72941, 84458, 86203, 99814, 145882, 172406, 548977, 802351, 948233, 1097954, 1604702, 1896466, 10430563, 20861126]

約数ペア:

[(1, 20861126), (2, 10430563), (11, 1896466), (13, 1604702), (19, 1097954), (22, 948233), (26, 802351), (38, 548977), (121, 172406), (143, 145882), (209, 99814), (242, 86203), (247, 84458), (286, 72941), (349, 59774), (418, 49907), (494, 42229), (698, 29887), (1573, 13262), (2299, 9074), (2717, 7678), (3146, 6631), (3839, 5434), (4537, 4598)]