21738800

素因数分解:

$2^4\times 5^2\times {\mathrm{54347}}^1$

素因数の和:54365

約数の個数: 30

約数和(自身を含む): 52228428

約数和(自身を除く): 30489628

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 54347, 108694, 217388, 271735, 434776, 543470, 869552, 1086940, 1358675, 2173880, 2717350, 4347760, 5434700, 10869400, 21738800]

約数ペア:

[(1, 21738800), (2, 10869400), (4, 5434700), (5, 4347760), (8, 2717350), (10, 2173880), (16, 1358675), (20, 1086940), (25, 869552), (40, 543470), (50, 434776), (80, 271735), (100, 217388), (200, 108694), (400, 54347)]