21389243521

素因数分解:

${\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{307}}^1\times {\mathrm{51647}}^1$

素因数の和:52044

約数の個数: 16

約数和(自身を含む): 22906920960

約数和(自身を除く): 1517677439

約数列:

[1, 19, 71, 307, 1349, 5833, 21797, 51647, 414143, 981293, 3666937, 15855629, 69671803, 301256951, 1125749659, 21389243521]

約数ペア:

[(1, 21389243521), (19, 1125749659), (71, 301256951), (307, 69671803), (1349, 15855629), (5833, 3666937), (21797, 981293), (51647, 414143)]