213252020

素因数分解:

$2^2\times 5^1\times {\mathrm{983}}^1\times {\mathrm{10847}}^1$

素因数の和:11839

約数の個数: 24

約数和(自身を含む): 448326144

約数和(自身を除く): 235074124

約数列:

[1, 2, 4, 5, 10, 20, 983, 1966, 3932, 4915, 9830, 10847, 19660, 21694, 43388, 54235, 108470, 216940, 10662601, 21325202, 42650404, 53313005, 106626010, 213252020]

約数ペア:

[(1, 213252020), (2, 106626010), (4, 53313005), (5, 42650404), (10, 21325202), (20, 10662601), (983, 216940), (1966, 108470), (3932, 54235), (4915, 43388), (9830, 21694), (10847, 19660)]