81970389

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{503}}^1\times {\mathrm{953}}^1$

素因数の和:1481

約数の個数: 24

約数和(自身を含む): 125012160

約数和(自身を除く): 43041771

約数列:

[1, 3, 9, 19, 57, 171, 503, 953, 1509, 2859, 4527, 8577, 9557, 18107, 28671, 54321, 86013, 162963, 479359, 1438077, 4314231, 9107821, 27323463, 81970389]

約数ペア:

[(1, 81970389), (3, 27323463), (9, 9107821), (19, 4314231), (57, 1438077), (171, 479359), (503, 162963), (953, 86013), (1509, 54321), (2859, 28671), (4527, 18107), (8577, 9557)]