28778757

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{44207}}^1$

素因数の和:44248

約数の個数: 16

約数和(自身を含む): 45268992

約数和(自身を除く): 16490235

約数列:

[1, 3, 7, 21, 31, 93, 217, 651, 44207, 132621, 309449, 928347, 1370417, 4111251, 9592919, 28778757]

約数ペア:

[(1, 28778757), (3, 9592919), (7, 4111251), (21, 1370417), (31, 928347), (93, 309449), (217, 132621), (651, 44207)]