20216763

素因数分解:

$3^3\times 7^3\times {\mathrm{37}}^1\times {\mathrm{59}}^1$

素因数の和:126

約数の個数: 64

約数和(自身を含む): 36480000

約数和(自身を除く): 16263237

約数列:

[1, 3, 7, 9, 21, 27, 37, 49, 59, 63, 111, 147, 177, 189, 259, 333, 343, 413, 441, 531, 777, 999, 1029, 1239, 1323, 1593, 1813, 2183, 2331, 2891, 3087, 3717, 5439, 6549, 6993, 8673, 9261, 11151, 12691, 15281, 16317, 19647, 20237, 26019, 38073, 45843, 48951, 58941, 60711, 78057, 106967, 114219, 137529, 182133, 320901, 342657, 412587, 546399, 748769, 962703, 2246307, 2888109, 6738921, 20216763]

約数ペア:

[(1, 20216763), (3, 6738921), (7, 2888109), (9, 2246307), (21, 962703), (27, 748769), (37, 546399), (49, 412587), (59, 342657), (63, 320901), (111, 182133), (147, 137529), (177, 114219), (189, 106967), (259, 78057), (333, 60711), (343, 58941), (413, 48951), (441, 45843), (531, 38073), (777, 26019), (999, 20237), (1029, 19647), (1239, 16317), (1323, 15281), (1593, 12691), (1813, 11151), (2183, 9261), (2331, 8673), (2891, 6993), (3087, 6549), (3717, 5439)]