18981032

素因数分解:

$2^3\times 7^2\times {\mathrm{41}}^1\times {\mathrm{1181}}^1$

素因数の和:1242

約数の個数: 48

約数和(自身を含む): 42445620

約数和(自身を除く): 23464588

約数列:

[1, 2, 4, 7, 8, 14, 28, 41, 49, 56, 82, 98, 164, 196, 287, 328, 392, 574, 1148, 1181, 2009, 2296, 2362, 4018, 4724, 8036, 8267, 9448, 16072, 16534, 33068, 48421, 57869, 66136, 96842, 115738, 193684, 231476, 338947, 387368, 462952, 677894, 1355788, 2372629, 2711576, 4745258, 9490516, 18981032]

約数ペア:

[(1, 18981032), (2, 9490516), (4, 4745258), (7, 2711576), (8, 2372629), (14, 1355788), (28, 677894), (41, 462952), (49, 387368), (56, 338947), (82, 231476), (98, 193684), (164, 115738), (196, 96842), (287, 66136), (328, 57869), (392, 48421), (574, 33068), (1148, 16534), (1181, 16072), (2009, 9448), (2296, 8267), (2362, 8036), (4018, 4724)]