20212538

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{9349}}^1$

素因数の和:9421

約数の個数: 16

約数和(自身を含む): 32313600

約数和(自身を除く): 12101062

約数列:

[1, 2, 23, 46, 47, 94, 1081, 2162, 9349, 18698, 215027, 430054, 439403, 878806, 10106269, 20212538]

約数ペア:

[(1, 20212538), (2, 10106269), (23, 878806), (46, 439403), (47, 430054), (94, 215027), (1081, 18698), (2162, 9349)]