20297775

素因数分解:

$3^1\times 5^2\times {\mathrm{127}}^1\times {\mathrm{2131}}^1$

素因数の和:2271

約数の個数: 24

約数和(自身を含む): 33839104

約数和(自身を除く): 13541329

約数列:

[1, 3, 5, 15, 25, 75, 127, 381, 635, 1905, 2131, 3175, 6393, 9525, 10655, 31965, 53275, 159825, 270637, 811911, 1353185, 4059555, 6765925, 20297775]

約数ペア:

[(1, 20297775), (3, 6765925), (5, 4059555), (15, 1353185), (25, 811911), (75, 270637), (127, 159825), (381, 53275), (635, 31965), (1905, 10655), (2131, 9525), (3175, 6393)]