28009719

素因数分解:

$3^4\times {\mathrm{59}}^1\times {\mathrm{5861}}^1$

素因数の和:5932

約数の個数: 20

約数和(自身を含む): 42558120

約数和(自身を除く): 14548401

約数列:

[1, 3, 9, 27, 59, 81, 177, 531, 1593, 4779, 5861, 17583, 52749, 158247, 345799, 474741, 1037397, 3112191, 9336573, 28009719]

約数ペア:

[(1, 28009719), (3, 9336573), (9, 3112191), (27, 1037397), (59, 474741), (81, 345799), (177, 158247), (531, 52749), (1593, 17583), (4779, 5861)]