21520236

素因数分解:

$2^2\times 3^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{2551}}^1$

素因数の和:2614

約数の個数: 48

約数和(自身を含む): 54306560

約数和(自身を除く): 32786324

約数列:

[1, 2, 3, 4, 6, 12, 19, 37, 38, 57, 74, 76, 111, 114, 148, 222, 228, 444, 703, 1406, 2109, 2551, 2812, 4218, 5102, 7653, 8436, 10204, 15306, 30612, 48469, 94387, 96938, 145407, 188774, 193876, 283161, 290814, 377548, 566322, 581628, 1132644, 1793353, 3586706, 5380059, 7173412, 10760118, 21520236]

約数ペア:

[(1, 21520236), (2, 10760118), (3, 7173412), (4, 5380059), (6, 3586706), (12, 1793353), (19, 1132644), (37, 581628), (38, 566322), (57, 377548), (74, 290814), (76, 283161), (111, 193876), (114, 188774), (148, 145407), (222, 96938), (228, 94387), (444, 48469), (703, 30612), (1406, 15306), (2109, 10204), (2551, 8436), (2812, 7653), (4218, 5102)]