19992290

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{86923}}^1$

素因数の和:86953

約数の個数: 16

約数和(自身を含む): 37551168

約数和(自身を除く): 17558878

約数列:

[1, 2, 5, 10, 23, 46, 115, 230, 86923, 173846, 434615, 869230, 1999229, 3998458, 9996145, 19992290]

約数ペア:

[(1, 19992290), (2, 9996145), (5, 3998458), (10, 1999229), (23, 869230), (46, 434615), (115, 173846), (230, 86923)]