21841533

素因数分解:

$3^2\times 7^1\times {\mathrm{83}}^1\times {\mathrm{4177}}^1$

素因数の和:4273

約数の個数: 24

約数和(自身を含む): 36499008

約数和(自身を除く): 14657475

約数列:

[1, 3, 7, 9, 21, 63, 83, 249, 581, 747, 1743, 4177, 5229, 12531, 29239, 37593, 87717, 263151, 346691, 1040073, 2426837, 3120219, 7280511, 21841533]

約数ペア:

[(1, 21841533), (3, 7280511), (7, 3120219), (9, 2426837), (21, 1040073), (63, 346691), (83, 263151), (249, 87717), (581, 37593), (747, 29239), (1743, 12531), (4177, 5229)]