19605388

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{40507}}^1$

素因数の和:40533

約数の個数: 18

約数和(自身を含む): 37712948

約数和(自身を除く): 18107560

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 40507, 81014, 162028, 445577, 891154, 1782308, 4901347, 9802694, 19605388]

約数ペア:

[(1, 19605388), (2, 9802694), (4, 4901347), (11, 1782308), (22, 891154), (44, 445577), (121, 162028), (242, 81014), (484, 40507)]