21248416

素因数分解:

$2^5\times 7^1\times {\mathrm{29}}^1\times {\mathrm{3271}}^1$

素因数の和:3317

約数の個数: 48

約数和(自身を含む): 49472640

約数和(自身を除く): 28224224

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 29, 32, 56, 58, 112, 116, 203, 224, 232, 406, 464, 812, 928, 1624, 3248, 3271, 6496, 6542, 13084, 22897, 26168, 45794, 52336, 91588, 94859, 104672, 183176, 189718, 366352, 379436, 664013, 732704, 758872, 1328026, 1517744, 2656052, 3035488, 5312104, 10624208, 21248416]

約数ペア:

[(1, 21248416), (2, 10624208), (4, 5312104), (7, 3035488), (8, 2656052), (14, 1517744), (16, 1328026), (28, 758872), (29, 732704), (32, 664013), (56, 379436), (58, 366352), (112, 189718), (116, 183176), (203, 104672), (224, 94859), (232, 91588), (406, 52336), (464, 45794), (812, 26168), (928, 22897), (1624, 13084), (3248, 6542), (3271, 6496)]