20170143

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{509}}^1$

素因数の和:576

約数の個数: 48

約数和(自身を含む): 36279360

約数和(自身を除く): 16109217

約数列:

[1, 3, 7, 9, 17, 21, 37, 51, 63, 111, 119, 153, 259, 333, 357, 509, 629, 777, 1071, 1527, 1887, 2331, 3563, 4403, 4581, 5661, 8653, 10689, 13209, 18833, 25959, 32067, 39627, 56499, 60571, 77877, 131831, 169497, 181713, 320161, 395493, 545139, 960483, 1186479, 2241127, 2881449, 6723381, 20170143]

約数ペア:

[(1, 20170143), (3, 6723381), (7, 2881449), (9, 2241127), (17, 1186479), (21, 960483), (37, 545139), (51, 395493), (63, 320161), (111, 181713), (119, 169497), (153, 131831), (259, 77877), (333, 60571), (357, 56499), (509, 39627), (629, 32067), (777, 25959), (1071, 18833), (1527, 13209), (1887, 10689), (2331, 8653), (3563, 5661), (4403, 4581)]