9780561

素因数分解:

$3^3\times 7^1\times {\mathrm{51749}}^1$

素因数の和:51765

約数の個数: 16

約数和(自身を含む): 16560000

約数和(自身を除く): 6779439

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 51749, 155247, 362243, 465741, 1086729, 1397223, 3260187, 9780561]

約数ペア:

[(1, 9780561), (3, 3260187), (7, 1397223), (9, 1086729), (21, 465741), (27, 362243), (63, 155247), (189, 51749)]