28707855

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{15817}}^1$

素因数の和:15847

約数の個数: 24

約数和(自身を含む): 50491056

約数和(自身を除く): 21783201

約数列:

[1, 3, 5, 11, 15, 33, 55, 121, 165, 363, 605, 1815, 15817, 47451, 79085, 173987, 237255, 521961, 869935, 1913857, 2609805, 5741571, 9569285, 28707855]

約数ペア:

[(1, 28707855), (3, 9569285), (5, 5741571), (11, 2609805), (15, 1913857), (33, 869935), (55, 521961), (121, 237255), (165, 173987), (363, 79085), (605, 47451), (1815, 15817)]