28621905

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{3967}}^1$

素因数の和:4025

約数の個数: 32

約数和(自身を含む): 50663424

約数和(自身を除く): 22041519

約数列:

[1, 3, 5, 13, 15, 37, 39, 65, 111, 185, 195, 481, 555, 1443, 2405, 3967, 7215, 11901, 19835, 51571, 59505, 146779, 154713, 257855, 440337, 733895, 773565, 1908127, 2201685, 5724381, 9540635, 28621905]

約数ペア:

[(1, 28621905), (3, 9540635), (5, 5724381), (13, 2201685), (15, 1908127), (37, 773565), (39, 733895), (65, 440337), (111, 257855), (185, 154713), (195, 146779), (481, 59505), (555, 51571), (1443, 19835), (2405, 11901), (3967, 7215)]