18644456

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{83}}^1\times {\mathrm{653}}^1$

素因数の和:785

約数の個数: 32

約数和(自身を含む): 36257760

約数和(自身を除く): 17613304

約数列:

[1, 2, 4, 8, 43, 83, 86, 166, 172, 332, 344, 653, 664, 1306, 2612, 3569, 5224, 7138, 14276, 28079, 28552, 54199, 56158, 108398, 112316, 216796, 224632, 433592, 2330557, 4661114, 9322228, 18644456]

約数ペア:

[(1, 18644456), (2, 9322228), (4, 4661114), (8, 2330557), (43, 433592), (83, 224632), (86, 216796), (166, 112316), (172, 108398), (332, 56158), (344, 54199), (653, 28552), (664, 28079), (1306, 14276), (2612, 7138), (3569, 5224)]