20211249969

素因数分解:

$3^2\times {\mathrm{17}}^2\times {\mathrm{179}}^1\times {\mathrm{43411}}^1$

素因数の和:43630

約数の個数: 36

約数和(自身を含む): 31186312560

約数和(自身を除く): 10975062591

約数列:

[1, 3, 9, 17, 51, 153, 179, 289, 537, 867, 1611, 2601, 3043, 9129, 27387, 43411, 51731, 130233, 155193, 390699, 465579, 737987, 2213961, 6641883, 7770569, 12545779, 23311707, 37637337, 69935121, 112912011, 132099673, 396299019, 1188897057, 2245694441, 6737083323, 20211249969]

約数ペア:

[(1, 20211249969), (3, 6737083323), (9, 2245694441), (17, 1188897057), (51, 396299019), (153, 132099673), (179, 112912011), (289, 69935121), (537, 37637337), (867, 23311707), (1611, 12545779), (2601, 7770569), (3043, 6641883), (9129, 2213961), (27387, 737987), (43411, 465579), (51731, 390699), (130233, 155193)]