51815547

素因数分解:

$3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{359}}^1$

素因数の和:480

約数の個数: 48

約数和(自身を含む): 89856000

約数和(自身を除く): 38040453

約数列:

[1, 3, 7, 9, 21, 29, 63, 79, 87, 203, 237, 261, 359, 553, 609, 711, 1077, 1659, 1827, 2291, 2513, 3231, 4977, 6873, 7539, 10411, 16037, 20619, 22617, 28361, 31233, 48111, 72877, 85083, 93699, 144333, 198527, 218631, 255249, 595581, 655893, 822469, 1786743, 2467407, 5757283, 7402221, 17271849, 51815547]

約数ペア:

[(1, 51815547), (3, 17271849), (7, 7402221), (9, 5757283), (21, 2467407), (29, 1786743), (63, 822469), (79, 655893), (87, 595581), (203, 255249), (237, 218631), (261, 198527), (359, 144333), (553, 93699), (609, 85083), (711, 72877), (1077, 48111), (1659, 31233), (1827, 28361), (2291, 22617), (2513, 20619), (3231, 16037), (4977, 10411), (6873, 7539)]