254366889

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{1493}}^1$

素因数の和:1590

約数の個数: 48

約数和(自身を含む): 422383680

約数和(自身を除く): 168016791

約数列:

[1, 3, 7, 19, 21, 49, 57, 61, 133, 147, 183, 399, 427, 931, 1159, 1281, 1493, 2793, 2989, 3477, 4479, 8113, 8967, 10451, 24339, 28367, 31353, 56791, 73157, 85101, 91073, 170373, 198569, 219471, 273219, 595707, 637511, 1389983, 1730387, 1912533, 4169949, 4462577, 5191161, 12112709, 13387731, 36338127, 84788963, 254366889]

約数ペア:

[(1, 254366889), (3, 84788963), (7, 36338127), (19, 13387731), (21, 12112709), (49, 5191161), (57, 4462577), (61, 4169949), (133, 1912533), (147, 1730387), (183, 1389983), (399, 637511), (427, 595707), (931, 273219), (1159, 219471), (1281, 198569), (1493, 170373), (2793, 91073), (2989, 85101), (3477, 73157), (4479, 56791), (8113, 31353), (8967, 28367), (10451, 24339)]