21865155

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{112129}}^1$

素因数の和:112150

約数の個数: 16

約数和(自身を含む): 37675680

約数和(自身を除く): 15810525

約数列:

[1, 3, 5, 13, 15, 39, 65, 195, 112129, 336387, 560645, 1457677, 1681935, 4373031, 7288385, 21865155]

約数ペア:

[(1, 21865155), (3, 7288385), (5, 4373031), (13, 1681935), (15, 1457677), (39, 560645), (65, 336387), (195, 112129)]