16721211

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{4007}}^1$

素因数の和:4130

約数の個数: 16

約数和(自身を含む): 24240384

約数和(自身を除く): 7519173

約数列:

[1, 3, 13, 39, 107, 321, 1391, 4007, 4173, 12021, 52091, 156273, 428749, 1286247, 5573737, 16721211]

約数ペア:

[(1, 16721211), (3, 5573737), (13, 1286247), (39, 428749), (107, 156273), (321, 52091), (1391, 12021), (4007, 4173)]