16857505

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{487}}^1$

素因数の和:565

約数の個数: 32

約数和(自身を含む): 24735744

約数和(自身を除く): 7878239

約数列:

[1, 5, 7, 23, 35, 43, 115, 161, 215, 301, 487, 805, 989, 1505, 2435, 3409, 4945, 6923, 11201, 17045, 20941, 34615, 56005, 78407, 104705, 146587, 392035, 481643, 732935, 2408215, 3371501, 16857505]

約数ペア:

[(1, 16857505), (5, 3371501), (7, 2408215), (23, 732935), (35, 481643), (43, 392035), (115, 146587), (161, 104705), (215, 78407), (301, 56005), (487, 34615), (805, 20941), (989, 17045), (1505, 11201), (2435, 6923), (3409, 4945)]