19689009

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{149}}^1\times {\mathrm{2591}}^1$

素因数の和:2760

約数の個数: 16

約数和(自身を含む): 27993600

約数和(自身を除く): 8304591

約数列:

[1, 3, 17, 51, 149, 447, 2533, 2591, 7599, 7773, 44047, 132141, 386059, 1158177, 6563003, 19689009]

約数ペア:

[(1, 19689009), (3, 6563003), (17, 1158177), (51, 386059), (149, 132141), (447, 44047), (2533, 7773), (2591, 7599)]