221524304

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{321983}}^1$

素因数の和:322034

約数の個数: 20

約数和(自身を含む): 439186176

約数和(自身を除く): 217661872

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 321983, 643966, 1287932, 2575864, 5151728, 13845269, 27690538, 55381076, 110762152, 221524304]

約数ペア:

[(1, 221524304), (2, 110762152), (4, 55381076), (8, 27690538), (16, 13845269), (43, 5151728), (86, 2575864), (172, 1287932), (344, 643966), (688, 321983)]