20181159

素因数分解:

$3^2\times {\mathrm{17}}^2\times {\mathrm{7759}}^1$

素因数の和:7799

約数の個数: 18

約数和(自身を含む): 30970160

約数和(自身を除く): 10789001

約数列:

[1, 3, 9, 17, 51, 153, 289, 867, 2601, 7759, 23277, 69831, 131903, 395709, 1187127, 2242351, 6727053, 20181159]

約数ペア:

[(1, 20181159), (3, 6727053), (9, 2242351), (17, 1187127), (51, 395709), (153, 131903), (289, 69831), (867, 23277), (2601, 7759)]