28789389

素因数分解:

$3^2\times {\mathrm{19}}^2\times {\mathrm{8861}}^1$

素因数の和:8905

約数の個数: 18

約数和(自身を含む): 43893486

約数和(自身を除く): 15104097

約数列:

[1, 3, 9, 19, 57, 171, 361, 1083, 3249, 8861, 26583, 79749, 168359, 505077, 1515231, 3198821, 9596463, 28789389]

約数ペア:

[(1, 28789389), (3, 9596463), (9, 3198821), (19, 1515231), (57, 505077), (171, 168359), (361, 79749), (1083, 26583), (3249, 8861)]