18639448

素因数分解:

$2^3\times {\mathrm{47}}^1\times {\mathrm{89}}^1\times {\mathrm{557}}^1$

素因数の和:699

約数の個数: 32

約数和(自身を含む): 36158400

約数和(自身を除く): 17518952

約数列:

[1, 2, 4, 8, 47, 89, 94, 178, 188, 356, 376, 557, 712, 1114, 2228, 4183, 4456, 8366, 16732, 26179, 33464, 49573, 52358, 99146, 104716, 198292, 209432, 396584, 2329931, 4659862, 9319724, 18639448]

約数ペア:

[(1, 18639448), (2, 9319724), (4, 4659862), (8, 2329931), (47, 396584), (89, 209432), (94, 198292), (178, 104716), (188, 99146), (356, 52358), (376, 49573), (557, 33464), (712, 26179), (1114, 16732), (2228, 8366), (4183, 4456)]