2778489

素因数分解:

$3^3\times 7^1\times {\mathrm{61}}^1\times {\mathrm{241}}^1$

素因数の和:318

約数の個数: 32

約数和(自身を含む): 4801280

約数和(自身を除く): 2022791

約数列:

[1, 3, 7, 9, 21, 27, 61, 63, 183, 189, 241, 427, 549, 723, 1281, 1647, 1687, 2169, 3843, 5061, 6507, 11529, 14701, 15183, 44103, 45549, 102907, 132309, 308721, 396927, 926163, 2778489]

約数ペア:

[(1, 2778489), (3, 926163), (7, 396927), (9, 308721), (21, 132309), (27, 102907), (61, 45549), (63, 44103), (183, 15183), (189, 14701), (241, 11529), (427, 6507), (549, 5061), (723, 3843), (1281, 2169), (1647, 1687)]