21198464

素因数分解:

$2^7\times 7^1\times {\mathrm{59}}^1\times {\mathrm{401}}^1$

素因数の和:481

約数の個数: 64

約数和(自身を含む): 49204800

約数和(自身を除く): 28006336

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 59, 64, 112, 118, 128, 224, 236, 401, 413, 448, 472, 802, 826, 896, 944, 1604, 1652, 1888, 2807, 3208, 3304, 3776, 5614, 6416, 6608, 7552, 11228, 12832, 13216, 22456, 23659, 25664, 26432, 44912, 47318, 51328, 52864, 89824, 94636, 165613, 179648, 189272, 331226, 359296, 378544, 662452, 757088, 1324904, 1514176, 2649808, 3028352, 5299616, 10599232, 21198464]

約数ペア:

[(1, 21198464), (2, 10599232), (4, 5299616), (7, 3028352), (8, 2649808), (14, 1514176), (16, 1324904), (28, 757088), (32, 662452), (56, 378544), (59, 359296), (64, 331226), (112, 189272), (118, 179648), (128, 165613), (224, 94636), (236, 89824), (401, 52864), (413, 51328), (448, 47318), (472, 44912), (802, 26432), (826, 25664), (896, 23659), (944, 22456), (1604, 13216), (1652, 12832), (1888, 11228), (2807, 7552), (3208, 6608), (3304, 6416), (3776, 5614)]