16978221

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{48371}}^1$

素因数の和:48393

約数の個数: 16

約数和(自身を含む): 27088320

約数和(自身を除く): 10110099

約数列:

[1, 3, 9, 13, 27, 39, 117, 351, 48371, 145113, 435339, 628823, 1306017, 1886469, 5659407, 16978221]

約数ペア:

[(1, 16978221), (3, 5659407), (9, 1886469), (13, 1306017), (27, 628823), (39, 435339), (117, 145113), (351, 48371)]