20780039609

素因数分解:

$7^2\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{222149}}^1$

素因数の和:222269

約数の個数: 24

約数和(自身を含む): 25527700800

約数和(自身を除く): 4747661191

約数列:

[1, 7, 23, 49, 83, 161, 581, 1127, 1909, 4067, 13363, 93541, 222149, 1555043, 5109427, 10885301, 18438367, 35765989, 129068569, 250361923, 424082441, 903479983, 2968577087, 20780039609]

約数ペア:

[(1, 20780039609), (7, 2968577087), (23, 903479983), (49, 424082441), (83, 250361923), (161, 129068569), (581, 35765989), (1127, 18438367), (1909, 10885301), (4067, 5109427), (13363, 1555043), (93541, 222149)]