20511603

素因数分解:

$3^3\times 7^1\times {\mathrm{41}}^1\times {\mathrm{2647}}^1$

素因数の和:2704

約数の個数: 32

約数和(自身を含む): 35589120

約数和(自身を除く): 15077517

約数列:

[1, 3, 7, 9, 21, 27, 41, 63, 123, 189, 287, 369, 861, 1107, 2583, 2647, 7749, 7941, 18529, 23823, 55587, 71469, 108527, 166761, 325581, 500283, 759689, 976743, 2279067, 2930229, 6837201, 20511603]

約数ペア:

[(1, 20511603), (3, 6837201), (7, 2930229), (9, 2279067), (21, 976743), (27, 759689), (41, 500283), (63, 325581), (123, 166761), (189, 108527), (287, 71469), (369, 55587), (861, 23823), (1107, 18529), (2583, 7941), (2647, 7749)]