21006987189

素因数分解:

$3^1\times {\mathrm{71}}^1\times {\mathrm{4637}}^1\times {\mathrm{21269}}^1$

素因数の和:25980

約数の個数: 16

約数和(自身を含む): 28411274880

約数和(自身を除く): 7404287691

約数列:

[1, 3, 71, 213, 4637, 13911, 21269, 63807, 329227, 987681, 1510099, 4530297, 98624353, 295873059, 7002329063, 21006987189]

約数ペア:

[(1, 21006987189), (3, 7002329063), (71, 295873059), (213, 98624353), (4637, 4530297), (13911, 1510099), (21269, 987681), (63807, 329227)]