21138072

素因数分解:

$2^3\times 3^1\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{503}}^1$

素因数の和:632

約数の個数: 64

約数和(自身を含む): 56609280

約数和(自身を除く): 35471208

約数列:

[1, 2, 3, 4, 6, 8, 12, 17, 24, 34, 51, 68, 102, 103, 136, 204, 206, 309, 408, 412, 503, 618, 824, 1006, 1236, 1509, 1751, 2012, 2472, 3018, 3502, 4024, 5253, 6036, 7004, 8551, 10506, 12072, 14008, 17102, 21012, 25653, 34204, 42024, 51306, 51809, 68408, 102612, 103618, 155427, 205224, 207236, 310854, 414472, 621708, 880753, 1243416, 1761506, 2642259, 3523012, 5284518, 7046024, 10569036, 21138072]

約数ペア:

[(1, 21138072), (2, 10569036), (3, 7046024), (4, 5284518), (6, 3523012), (8, 2642259), (12, 1761506), (17, 1243416), (24, 880753), (34, 621708), (51, 414472), (68, 310854), (102, 207236), (103, 205224), (136, 155427), (204, 103618), (206, 102612), (309, 68408), (408, 51809), (412, 51306), (503, 42024), (618, 34204), (824, 25653), (1006, 21012), (1236, 17102), (1509, 14008), (1751, 12072), (2012, 10506), (2472, 8551), (3018, 7004), (3502, 6036), (4024, 5253)]