18876807

素因数分解:

$3^4\times {\mathrm{241}}^1\times {\mathrm{967}}^1$

素因数の和:1220

約数の個数: 20

約数和(自身を含む): 28344976

約数和(自身を除く): 9468169

約数列:

[1, 3, 9, 27, 81, 241, 723, 967, 2169, 2901, 6507, 8703, 19521, 26109, 78327, 233047, 699141, 2097423, 6292269, 18876807]

約数ペア:

[(1, 18876807), (3, 6292269), (9, 2097423), (27, 699141), (81, 233047), (241, 78327), (723, 26109), (967, 19521), (2169, 8703), (2901, 6507)]