2807217

素因数分解:

$3^4\times 7^1\times {\mathrm{4951}}^1$

素因数の和:4970

約数の個数: 20

約数和(自身を含む): 4793536

約数和(自身を除く): 1986319

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 4951, 14853, 34657, 44559, 103971, 133677, 311913, 401031, 935739, 2807217]

約数ペア:

[(1, 2807217), (3, 935739), (7, 401031), (9, 311913), (21, 133677), (27, 103971), (63, 44559), (81, 34657), (189, 14853), (567, 4951)]