21844688

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{31751}}^1$

素因数の和:31802

約数の個数: 20

約数和(自身を含む): 43309728

約数和(自身を除く): 21465040

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 31751, 63502, 127004, 254008, 508016, 1365293, 2730586, 5461172, 10922344, 21844688]

約数ペア:

[(1, 21844688), (2, 10922344), (4, 5461172), (8, 2730586), (16, 1365293), (43, 508016), (86, 254008), (172, 127004), (344, 63502), (688, 31751)]