30912021

素因数分解:

$3^2\times 7^1\times {\mathrm{239}}^1\times {\mathrm{2053}}^1$

素因数の和:2305

約数の個数: 24

約数和(自身を含む): 51267840

約数和(自身を除く): 20355819

約数列:

[1, 3, 7, 9, 21, 63, 239, 717, 1673, 2053, 2151, 5019, 6159, 14371, 15057, 18477, 43113, 129339, 490667, 1472001, 3434669, 4416003, 10304007, 30912021]

約数ペア:

[(1, 30912021), (3, 10304007), (7, 4416003), (9, 3434669), (21, 1472001), (63, 490667), (239, 129339), (717, 43113), (1673, 18477), (2053, 15057), (2151, 14371), (5019, 6159)]