21195706

素因数分解:

$2^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{17011}}^1$

素因数の和:17109

約数の個数: 16

約数和(自身を含む): 36745920

約数和(自身を除く): 15550214

約数列:

[1, 2, 7, 14, 89, 178, 623, 1246, 17011, 34022, 119077, 238154, 1513979, 3027958, 10597853, 21195706]

約数ペア:

[(1, 21195706), (2, 10597853), (7, 3027958), (14, 1513979), (89, 238154), (178, 119077), (623, 34022), (1246, 17011)]