19665447613

素因数分解:

$7^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{509}}^1\times {\mathrm{2731}}^1$

素因数の和:3337

約数の個数: 32

約数和(自身を含む): 23541534720

約数和(自身を除く): 3876087107

約数列:

[1, 7, 43, 47, 301, 329, 509, 2021, 2731, 3563, 14147, 19117, 21887, 23923, 117433, 128357, 153209, 167461, 822031, 898499, 1028689, 1390079, 5519351, 7200823, 9730553, 38635457, 59773397, 65333713, 418413779, 457335991, 2809349659, 19665447613]

約数ペア:

[(1, 19665447613), (7, 2809349659), (43, 457335991), (47, 418413779), (301, 65333713), (329, 59773397), (509, 38635457), (2021, 9730553), (2731, 7200823), (3563, 5519351), (14147, 1390079), (19117, 1028689), (21887, 898499), (23923, 822031), (117433, 167461), (128357, 153209)]