21426272

素因数分解:

$2^5\times 7^1\times {\mathrm{41}}^1\times {\mathrm{2333}}^1$

素因数の和:2391

約数の個数: 48

約数和(自身を含む): 49406112

約数和(自身を除く): 27979840

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 41, 56, 82, 112, 164, 224, 287, 328, 574, 656, 1148, 1312, 2296, 2333, 4592, 4666, 9184, 9332, 16331, 18664, 32662, 37328, 65324, 74656, 95653, 130648, 191306, 261296, 382612, 522592, 669571, 765224, 1339142, 1530448, 2678284, 3060896, 5356568, 10713136, 21426272]

約数ペア:

[(1, 21426272), (2, 10713136), (4, 5356568), (7, 3060896), (8, 2678284), (14, 1530448), (16, 1339142), (28, 765224), (32, 669571), (41, 522592), (56, 382612), (82, 261296), (112, 191306), (164, 130648), (224, 95653), (287, 74656), (328, 65324), (574, 37328), (656, 32662), (1148, 18664), (1312, 16331), (2296, 9332), (2333, 9184), (4592, 4666)]