21264544

素因数分解:

$2^5\times 7^1\times {\mathrm{59}}^1\times {\mathrm{1609}}^1$

素因数の和:1685

約数の個数: 48

約数和(自身を含む): 48686400

約数和(自身を除く): 27421856

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 59, 112, 118, 224, 236, 413, 472, 826, 944, 1609, 1652, 1888, 3218, 3304, 6436, 6608, 11263, 12872, 13216, 22526, 25744, 45052, 51488, 90104, 94931, 180208, 189862, 360416, 379724, 664517, 759448, 1329034, 1518896, 2658068, 3037792, 5316136, 10632272, 21264544]

約数ペア:

[(1, 21264544), (2, 10632272), (4, 5316136), (7, 3037792), (8, 2658068), (14, 1518896), (16, 1329034), (28, 759448), (32, 664517), (56, 379724), (59, 360416), (112, 189862), (118, 180208), (224, 94931), (236, 90104), (413, 51488), (472, 45052), (826, 25744), (944, 22526), (1609, 13216), (1652, 12872), (1888, 11263), (3218, 6608), (3304, 6436)]