18655569

素因数分解:

$3^3\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{241}}^1$

素因数の和:358

約数の個数: 32

約数和(自身を含む): 28807680

約数和(自身を除く): 10152111

約数列:

[1, 3, 9, 27, 47, 61, 141, 183, 241, 423, 549, 723, 1269, 1647, 2169, 2867, 6507, 8601, 11327, 14701, 25803, 33981, 44103, 77409, 101943, 132309, 305829, 396927, 690947, 2072841, 6218523, 18655569]

約数ペア:

[(1, 18655569), (3, 6218523), (9, 2072841), (27, 690947), (47, 396927), (61, 305829), (141, 132309), (183, 101943), (241, 77409), (423, 44103), (549, 33981), (723, 25803), (1269, 14701), (1647, 11327), (2169, 8601), (2867, 6507)]