21651712

素因数分解:

$2^8\times {\mathrm{83}}^1\times {\mathrm{1019}}^1$

素因数の和:1118

約数の個数: 36

約数和(自身を含む): 43782480

約数和(自身を除く): 22130768

約数列:

[1, 2, 4, 8, 16, 32, 64, 83, 128, 166, 256, 332, 664, 1019, 1328, 2038, 2656, 4076, 5312, 8152, 10624, 16304, 21248, 32608, 65216, 84577, 130432, 169154, 260864, 338308, 676616, 1353232, 2706464, 5412928, 10825856, 21651712]

約数ペア:

[(1, 21651712), (2, 10825856), (4, 5412928), (8, 2706464), (16, 1353232), (32, 676616), (64, 338308), (83, 260864), (128, 169154), (166, 130432), (256, 84577), (332, 65216), (664, 32608), (1019, 21248), (1328, 16304), (2038, 10624), (2656, 8152), (4076, 5312)]