2821861

素因数分解:

$7^3\times {\mathrm{19}}^1\times {\mathrm{433}}^1$

素因数の和:473

約数の個数: 16

約数和(自身を含む): 3472000

約数和(自身を除く): 650139

約数列:

[1, 7, 19, 49, 133, 343, 433, 931, 3031, 6517, 8227, 21217, 57589, 148519, 403123, 2821861]

約数ペア:

[(1, 2821861), (7, 403123), (19, 148519), (49, 57589), (133, 21217), (343, 8227), (433, 6517), (931, 3031)]