21571033

素因数分解:

${\mathrm{11}}^2\times {\mathrm{23}}^2\times {\mathrm{337}}^1$

素因数の和:405

約数の個数: 18

約数和(自身を含む): 24859562

約数和(自身を除く): 3288529

約数列:

[1, 11, 23, 121, 253, 337, 529, 2783, 3707, 5819, 7751, 40777, 64009, 85261, 178273, 937871, 1961003, 21571033]

約数ペア:

[(1, 21571033), (11, 1961003), (23, 937871), (121, 178273), (253, 85261), (337, 64009), (529, 40777), (2783, 7751), (3707, 5819)]