18945248

素因数分解:

$2^5\times 7^1\times {\mathrm{83}}^1\times {\mathrm{1019}}^1$

素因数の和:1119

約数の個数: 48

約数和(自身を含む): 43182720

約数和(自身を除く): 24237472

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 83, 112, 166, 224, 332, 581, 664, 1019, 1162, 1328, 2038, 2324, 2656, 4076, 4648, 7133, 8152, 9296, 14266, 16304, 18592, 28532, 32608, 57064, 84577, 114128, 169154, 228256, 338308, 592039, 676616, 1184078, 1353232, 2368156, 2706464, 4736312, 9472624, 18945248]

約数ペア:

[(1, 18945248), (2, 9472624), (4, 4736312), (7, 2706464), (8, 2368156), (14, 1353232), (16, 1184078), (28, 676616), (32, 592039), (56, 338308), (83, 228256), (112, 169154), (166, 114128), (224, 84577), (332, 57064), (581, 32608), (664, 28532), (1019, 18592), (1162, 16304), (1328, 14266), (2038, 9296), (2324, 8152), (2656, 7133), (4076, 4648)]