20948265

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{35809}}^1$

素因数の和:35833

約数の個数: 24

約数和(自身を含む): 39104520

約数和(自身を除く): 18156255

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 117, 195, 585, 35809, 107427, 179045, 322281, 465517, 537135, 1396551, 1611405, 2327585, 4189653, 6982755, 20948265]

約数ペア:

[(1, 20948265), (3, 6982755), (5, 4189653), (9, 2327585), (13, 1611405), (15, 1396551), (39, 537135), (45, 465517), (65, 322281), (117, 179045), (195, 107427), (585, 35809)]