21071800

素因数分解:

$2^3\times 5^2\times {\mathrm{105359}}^1$

素因数の和:105375

約数の個数: 24

約数和(自身を含む): 48992400

約数和(自身を除く): 27920600

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 105359, 210718, 421436, 526795, 842872, 1053590, 2107180, 2633975, 4214360, 5267950, 10535900, 21071800]

約数ペア:

[(1, 21071800), (2, 10535900), (4, 5267950), (5, 4214360), (8, 2633975), (10, 2107180), (20, 1053590), (25, 842872), (40, 526795), (50, 421436), (100, 210718), (200, 105359)]