19899027

素因数分解:

$3^5\times {\mathrm{17}}^1\times {\mathrm{4817}}^1$

素因数の和:4849

約数の個数: 24

約数和(自身を含む): 31567536

約数和(自身を除く): 11668509

約数列:

[1, 3, 9, 17, 27, 51, 81, 153, 243, 459, 1377, 4131, 4817, 14451, 43353, 81889, 130059, 245667, 390177, 737001, 1170531, 2211003, 6633009, 19899027]

約数ペア:

[(1, 19899027), (3, 6633009), (9, 2211003), (17, 1170531), (27, 737001), (51, 390177), (81, 245667), (153, 130059), (243, 81889), (459, 43353), (1377, 14451), (4131, 4817)]