21167124470

素因数分解:

$2^1\times 5^1\times {\mathrm{5189}}^1\times {\mathrm{407923}}^1$

素因数の和:413119

約数の個数: 16

約数和(自身を含む): 38108260080

約数和(自身を除く): 16941135610

約数列:

[1, 2, 5, 10, 5189, 10378, 25945, 51890, 407923, 815846, 2039615, 4079230, 2116712447, 4233424894, 10583562235, 21167124470]

約数ペア:

[(1, 21167124470), (2, 10583562235), (5, 4233424894), (10, 2116712447), (5189, 4079230), (10378, 2039615), (25945, 815846), (51890, 407923)]