28270737

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{229}}^1$

素因数の和:318

約数の個数: 48

約数和(自身を含む): 47361600

約数和(自身を除く): 19090863

約数列:

[1, 3, 9, 11, 29, 33, 43, 87, 99, 129, 229, 261, 319, 387, 473, 687, 957, 1247, 1419, 2061, 2519, 2871, 3741, 4257, 6641, 7557, 9847, 11223, 13717, 19923, 22671, 29541, 41151, 59769, 73051, 88623, 108317, 123453, 219153, 285563, 324951, 657459, 856689, 974853, 2570067, 3141193, 9423579, 28270737]

約数ペア:

[(1, 28270737), (3, 9423579), (9, 3141193), (11, 2570067), (29, 974853), (33, 856689), (43, 657459), (87, 324951), (99, 285563), (129, 219153), (229, 123453), (261, 108317), (319, 88623), (387, 73051), (473, 59769), (687, 41151), (957, 29541), (1247, 22671), (1419, 19923), (2061, 13717), (2519, 11223), (2871, 9847), (3741, 7557), (4257, 6641)]