21284199

素因数分解:

$3^2\times {\mathrm{19}}^2\times {\mathrm{6551}}^1$

素因数の和:6595

約数の個数: 18

約数和(自身を含む): 32452056

約数和(自身を除く): 11167857

約数列:

[1, 3, 9, 19, 57, 171, 361, 1083, 3249, 6551, 19653, 58959, 124469, 373407, 1120221, 2364911, 7094733, 21284199]

約数ペア:

[(1, 21284199), (3, 7094733), (9, 2364911), (19, 1120221), (57, 373407), (171, 124469), (361, 58959), (1083, 19653), (3249, 6551)]