20212653

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{457}}^1\times {\mathrm{641}}^1$

素因数の和:1124

約数の個数: 16

約数和(自身を含む): 28227456

約数和(自身を除く): 8014803

約数列:

[1, 3, 23, 69, 457, 641, 1371, 1923, 10511, 14743, 31533, 44229, 292937, 878811, 6737551, 20212653]

約数ペア:

[(1, 20212653), (3, 6737551), (23, 878811), (69, 292937), (457, 44229), (641, 31533), (1371, 14743), (1923, 10511)]