2781387

素因数分解:

$3^2\times 7^3\times {\mathrm{17}}^1\times {\mathrm{53}}^1$

素因数の和:97

約数の個数: 48

約数和(自身を含む): 5054400

約数和(自身を除く): 2273013

約数列:

[1, 3, 7, 9, 17, 21, 49, 51, 53, 63, 119, 147, 153, 159, 343, 357, 371, 441, 477, 833, 901, 1029, 1071, 1113, 2499, 2597, 2703, 3087, 3339, 5831, 6307, 7497, 7791, 8109, 17493, 18179, 18921, 23373, 44149, 52479, 54537, 56763, 132447, 163611, 309043, 397341, 927129, 2781387]

約数ペア:

[(1, 2781387), (3, 927129), (7, 397341), (9, 309043), (17, 163611), (21, 132447), (49, 56763), (51, 54537), (53, 52479), (63, 44149), (119, 23373), (147, 18921), (153, 18179), (159, 17493), (343, 8109), (357, 7791), (371, 7497), (441, 6307), (477, 5831), (833, 3339), (901, 3087), (1029, 2703), (1071, 2597), (1113, 2499)]