21483488

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1201}}^1$

素因数の和:1267

約数の個数: 48

約数和(自身を含む): 46647216

約数和(自身を除く): 25163728

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 43, 52, 86, 104, 172, 208, 344, 416, 559, 688, 1118, 1201, 1376, 2236, 2402, 4472, 4804, 8944, 9608, 15613, 17888, 19216, 31226, 38432, 51643, 62452, 103286, 124904, 206572, 249808, 413144, 499616, 671359, 826288, 1342718, 1652576, 2685436, 5370872, 10741744, 21483488]

約数ペア:

[(1, 21483488), (2, 10741744), (4, 5370872), (8, 2685436), (13, 1652576), (16, 1342718), (26, 826288), (32, 671359), (43, 499616), (52, 413144), (86, 249808), (104, 206572), (172, 124904), (208, 103286), (344, 62452), (416, 51643), (559, 38432), (688, 31226), (1118, 19216), (1201, 17888), (1376, 15613), (2236, 9608), (2402, 8944), (4472, 4804)]