20545035

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{389}}^1\times {\mathrm{503}}^1$

素因数の和:907

約数の個数: 32

約数和(自身を含む): 37739520

約数和(自身を除く): 17194485

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 389, 503, 1167, 1509, 1945, 2515, 2723, 3521, 5835, 7545, 8169, 10563, 13615, 17605, 40845, 52815, 195667, 587001, 978335, 1369669, 2935005, 4109007, 6848345, 20545035]

約数ペア:

[(1, 20545035), (3, 6848345), (5, 4109007), (7, 2935005), (15, 1369669), (21, 978335), (35, 587001), (105, 195667), (389, 52815), (503, 40845), (1167, 17605), (1509, 13615), (1945, 10563), (2515, 8169), (2723, 7545), (3521, 5835)]