18718989

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{6221}}^1$

素因数の和:6300

約数の個数: 16

約数和(自身を含む): 26879040

約数和(自身を除く): 8160051

約数列:

[1, 3, 17, 51, 59, 177, 1003, 3009, 6221, 18663, 105757, 317271, 367039, 1101117, 6239663, 18718989]

約数ペア:

[(1, 18718989), (3, 6239663), (17, 1101117), (51, 367039), (59, 317271), (177, 105757), (1003, 18663), (3009, 6221)]