20713915

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{281}}^1\times {\mathrm{641}}^1$

素因数の和:950

約数の個数: 16

約数和(自身を含む): 26070336

約数和(自身を除く): 5356421

約数列:

[1, 5, 23, 115, 281, 641, 1405, 3205, 6463, 14743, 32315, 73715, 180121, 900605, 4142783, 20713915]

約数ペア:

[(1, 20713915), (5, 4142783), (23, 900605), (115, 180121), (281, 73715), (641, 32315), (1405, 14743), (3205, 6463)]