28918955

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{26171}}^1$

素因数の和:26206

約数の個数: 16

約数和(自身を含む): 39572064

約数和(自身を除く): 10653109

約数列:

[1, 5, 13, 17, 65, 85, 221, 1105, 26171, 130855, 340223, 444907, 1701115, 2224535, 5783791, 28918955]

約数ペア:

[(1, 28918955), (5, 5783791), (13, 2224535), (17, 1701115), (65, 444907), (85, 340223), (221, 130855), (1105, 26171)]