20189065

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{2371}}^1$

素因数の和:2520

約数の個数: 16

約数和(自身を含む): 26300736

約数和(自身を除く): 6111671

約数列:

[1, 5, 13, 65, 131, 655, 1703, 2371, 8515, 11855, 30823, 154115, 310601, 1553005, 4037813, 20189065]

約数ペア:

[(1, 20189065), (5, 4037813), (13, 1553005), (65, 310601), (131, 154115), (655, 30823), (1703, 11855), (2371, 8515)]