1220751

素因数分解:

$3^4\times 7^1\times {\mathrm{2153}}^1$

素因数の和:2172

約数の個数: 20

約数和(自身を含む): 2085072

約数和(自身を除く): 864321

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 2153, 6459, 15071, 19377, 45213, 58131, 135639, 174393, 406917, 1220751]

約数ペア:

[(1, 1220751), (3, 406917), (7, 174393), (9, 135639), (21, 58131), (27, 45213), (63, 19377), (81, 15071), (189, 6459), (567, 2153)]