20961085

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{12979}}^1$

素因数の和:13020

約数の個数: 16

約数和(自身を含む): 28036800

約数和(自身を除く): 7075715

約数列:

[1, 5, 17, 19, 85, 95, 323, 1615, 12979, 64895, 220643, 246601, 1103215, 1233005, 4192217, 20961085]

約数ペア:

[(1, 20961085), (5, 4192217), (17, 1233005), (19, 1103215), (85, 246601), (95, 220643), (323, 64895), (1615, 12979)]