217262403

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{257}}^1$

素因数の和:412

約数の個数: 48

約数和(自身を含む): 338083200

約数和(自身を除く): 120820797

約数列:

[1, 3, 9, 29, 41, 79, 87, 123, 237, 257, 261, 369, 711, 771, 1189, 2291, 2313, 3239, 3567, 6873, 7453, 9717, 10537, 10701, 20303, 20619, 22359, 29151, 31611, 60909, 67077, 93931, 94833, 182727, 281793, 305573, 588787, 832423, 845379, 916719, 1766361, 2497269, 2750157, 5299083, 7491807, 24140267, 72420801, 217262403]

約数ペア:

[(1, 217262403), (3, 72420801), (9, 24140267), (29, 7491807), (41, 5299083), (79, 2750157), (87, 2497269), (123, 1766361), (237, 916719), (257, 845379), (261, 832423), (369, 588787), (711, 305573), (771, 281793), (1189, 182727), (2291, 94833), (2313, 93931), (3239, 67077), (3567, 60909), (6873, 31611), (7453, 29151), (9717, 22359), (10537, 20619), (10701, 20303)]