21012250

素因数分解:

$2^1\times 5^3\times 7^1\times {\mathrm{12007}}^1$

素因数の和:12031

約数の個数: 32

約数和(自身を含む): 44957952

約数和(自身を除く): 23945702

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 50, 70, 125, 175, 250, 350, 875, 1750, 12007, 24014, 60035, 84049, 120070, 168098, 300175, 420245, 600350, 840490, 1500875, 2101225, 3001750, 4202450, 10506125, 21012250]

約数ペア:

[(1, 21012250), (2, 10506125), (5, 4202450), (7, 3001750), (10, 2101225), (14, 1500875), (25, 840490), (35, 600350), (50, 420245), (70, 300175), (125, 168098), (175, 120070), (250, 84049), (350, 60035), (875, 24014), (1750, 12007)]