28701387

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{769}}^1$

素因数の和:828

約数の個数: 48

約数和(自身を含む): 50450400

約数和(自身を除く): 21749013

約数列:

[1, 3, 9, 11, 13, 29, 33, 39, 87, 99, 117, 143, 261, 319, 377, 429, 769, 957, 1131, 1287, 2307, 2871, 3393, 4147, 6921, 8459, 9997, 12441, 22301, 25377, 29991, 37323, 66903, 76131, 89973, 109967, 200709, 245311, 289913, 329901, 735933, 869739, 989703, 2207799, 2609217, 3189043, 9567129, 28701387]

約数ペア:

[(1, 28701387), (3, 9567129), (9, 3189043), (11, 2609217), (13, 2207799), (29, 989703), (33, 869739), (39, 735933), (87, 329901), (99, 289913), (117, 245311), (143, 200709), (261, 109967), (319, 89973), (377, 76131), (429, 66903), (769, 37323), (957, 29991), (1131, 25377), (1287, 22301), (2307, 12441), (2871, 9997), (3393, 8459), (4147, 6921)]