644580321

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{2790391}}^1$

素因数の和:2790412

約数の個数: 16

約数和(自身を含む): 1071510528

約数和(自身を除く): 426930207

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 2790391, 8371173, 19532737, 30694301, 58598211, 92082903, 214860107, 644580321]

約数ペア:

[(1, 644580321), (3, 214860107), (7, 92082903), (11, 58598211), (21, 30694301), (33, 19532737), (77, 8371173), (231, 2790391)]