19880104

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{57791}}^1$

素因数の和:57840

約数の個数: 16

約数和(自身を含む): 38142720

約数和(自身を除く): 18262616

約数列:

[1, 2, 4, 8, 43, 86, 172, 344, 57791, 115582, 231164, 462328, 2485013, 4970026, 9940052, 19880104]

約数ペア:

[(1, 19880104), (2, 9940052), (4, 4970026), (8, 2485013), (43, 462328), (86, 231164), (172, 115582), (344, 57791)]