20121128

素因数分解:

$2^3\times {\mathrm{29}}^1\times {\mathrm{86729}}^1$

素因数の和:86764

約数の個数: 16

約数和(自身を含む): 39028500

約数和(自身を除く): 18907372

約数列:

[1, 2, 4, 8, 29, 58, 116, 232, 86729, 173458, 346916, 693832, 2515141, 5030282, 10060564, 20121128]

約数ペア:

[(1, 20121128), (2, 10060564), (4, 5030282), (8, 2515141), (29, 693832), (58, 346916), (116, 173458), (232, 86729)]