31889961

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{4337}}^1$

素因数の和:4405

約数の個数: 24

約数和(自身を含む): 49626720

約数和(自身を除く): 17736759

約数列:

[1, 3, 9, 19, 43, 57, 129, 171, 387, 817, 2451, 4337, 7353, 13011, 39033, 82403, 186491, 247209, 559473, 741627, 1678419, 3543329, 10629987, 31889961]

約数ペア:

[(1, 31889961), (3, 10629987), (9, 3543329), (19, 1678419), (43, 741627), (57, 559473), (129, 247209), (171, 186491), (387, 82403), (817, 39033), (2451, 13011), (4337, 7353)]