21190959

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{3221}}^1$

素因数の和:3287

約数の個数: 24

約数和(自身を含む): 33173712

約数和(自身を除く): 11982753

約数列:

[1, 3, 9, 17, 43, 51, 129, 153, 387, 731, 2193, 3221, 6579, 9663, 28989, 54757, 138503, 164271, 415509, 492813, 1246527, 2354551, 7063653, 21190959]

約数ペア:

[(1, 21190959), (3, 7063653), (9, 2354551), (17, 1246527), (43, 492813), (51, 415509), (129, 164271), (153, 138503), (387, 54757), (731, 28989), (2193, 9663), (3221, 6579)]