21003808

素因数分解:

$2^5\times 7^1\times {\mathrm{41}}^1\times {\mathrm{2287}}^1$

素因数の和:2345

約数の個数: 48

約数和(自身を含む): 48432384

約数和(自身を除く): 27428576

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 41, 56, 82, 112, 164, 224, 287, 328, 574, 656, 1148, 1312, 2287, 2296, 4574, 4592, 9148, 9184, 16009, 18296, 32018, 36592, 64036, 73184, 93767, 128072, 187534, 256144, 375068, 512288, 656369, 750136, 1312738, 1500272, 2625476, 3000544, 5250952, 10501904, 21003808]

約数ペア:

[(1, 21003808), (2, 10501904), (4, 5250952), (7, 3000544), (8, 2625476), (14, 1500272), (16, 1312738), (28, 750136), (32, 656369), (41, 512288), (56, 375068), (82, 256144), (112, 187534), (164, 128072), (224, 93767), (287, 73184), (328, 64036), (574, 36592), (656, 32018), (1148, 18296), (1312, 16009), (2287, 9184), (2296, 9148), (4574, 4592)]