21329395

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^2\times {\mathrm{193}}^1$

素因数の和:283

約数の個数: 24

約数和(自身を含む): 27740448

約数和(自身を除く): 6411053

約数列:

[1, 5, 23, 31, 115, 155, 193, 713, 961, 965, 3565, 4439, 4805, 5983, 22103, 22195, 29915, 110515, 137609, 185473, 688045, 927365, 4265879, 21329395]

約数ペア:

[(1, 21329395), (5, 4265879), (23, 927365), (31, 688045), (115, 185473), (155, 137609), (193, 110515), (713, 29915), (961, 22195), (965, 22103), (3565, 5983), (4439, 4805)]