19873215

素因数分解:

$3^3\times 5^1\times {\mathrm{147209}}^1$

素因数の和:147223

約数の個数: 16

約数和(自身を含む): 35330400

約数和(自身を除く): 15457185

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 147209, 441627, 736045, 1324881, 2208135, 3974643, 6624405, 19873215]

約数ペア:

[(1, 19873215), (3, 6624405), (5, 3974643), (9, 2208135), (15, 1324881), (27, 736045), (45, 441627), (135, 147209)]