407202957

素因数分解:

$3^4\times 7^1\times {\mathrm{718171}}^1$

素因数の和:718190

約数の個数: 20

約数和(自身を含む): 695190496

約数和(自身を除く): 287987539

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 718171, 2154513, 5027197, 6463539, 15081591, 19390617, 45244773, 58171851, 135734319, 407202957]

約数ペア:

[(1, 407202957), (3, 135734319), (7, 58171851), (9, 45244773), (21, 19390617), (27, 15081591), (63, 6463539), (81, 5027197), (189, 2154513), (567, 718171)]