81966388

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{127277}}^1$

素因数の和:127311

約数の個数: 24

約数和(自身を含む): 171061632

約数和(自身を除く): 89095244

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 644, 127277, 254554, 509108, 890939, 1781878, 2927371, 3563756, 5854742, 11709484, 20491597, 40983194, 81966388]

約数ペア:

[(1, 81966388), (2, 40983194), (4, 20491597), (7, 11709484), (14, 5854742), (23, 3563756), (28, 2927371), (46, 1781878), (92, 890939), (161, 509108), (322, 254554), (644, 127277)]