209890107

素因数分解:

$3^2\times 7^1\times {\mathrm{1097}}^1\times {\mathrm{3037}}^1$

素因数の和:4147

約数の個数: 24

約数和(自身を含む): 346915296

約数和(自身を除く): 137025189

約数列:

[1, 3, 7, 9, 21, 63, 1097, 3037, 3291, 7679, 9111, 9873, 21259, 23037, 27333, 63777, 69111, 191331, 3331589, 9994767, 23321123, 29984301, 69963369, 209890107]

約数ペア:

[(1, 209890107), (3, 69963369), (7, 29984301), (9, 23321123), (21, 9994767), (63, 3331589), (1097, 191331), (3037, 69111), (3291, 63777), (7679, 27333), (9111, 23037), (9873, 21259)]