27728961

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{1627}}^1$

素因数の和:1685

約数の個数: 32

約数和(自身を含む): 43760640

約数和(自身を除く): 16031679

約数列:

[1, 3, 13, 19, 23, 39, 57, 69, 247, 299, 437, 741, 897, 1311, 1627, 4881, 5681, 17043, 21151, 30913, 37421, 63453, 92739, 112263, 401869, 486473, 710999, 1205607, 1459419, 2132997, 9242987, 27728961]

約数ペア:

[(1, 27728961), (3, 9242987), (13, 2132997), (19, 1459419), (23, 1205607), (39, 710999), (57, 486473), (69, 401869), (247, 112263), (299, 92739), (437, 63453), (741, 37421), (897, 30913), (1311, 21151), (1627, 17043), (4881, 5681)]