21338032

素因数分解:

$2^4\times {\mathrm{127}}^1\times {\mathrm{10501}}^1$

素因数の和:10636

約数の個数: 20

約数和(自身を含む): 41671936

約数和(自身を除く): 20333904

約数列:

[1, 2, 4, 8, 16, 127, 254, 508, 1016, 2032, 10501, 21002, 42004, 84008, 168016, 1333627, 2667254, 5334508, 10669016, 21338032]

約数ペア:

[(1, 21338032), (2, 10669016), (4, 5334508), (8, 2667254), (16, 1333627), (127, 168016), (254, 84008), (508, 42004), (1016, 21002), (2032, 10501)]