21587806

素因数分解:

$2^1\times {\mathrm{43}}^1\times {\mathrm{283}}^1\times {\mathrm{887}}^1$

素因数の和:1215

約数の個数: 16

約数和(自身を含む): 33289344

約数和(自身を除く): 11701538

約数列:

[1, 2, 43, 86, 283, 566, 887, 1774, 12169, 24338, 38141, 76282, 251021, 502042, 10793903, 21587806]

約数ペア:

[(1, 21587806), (2, 10793903), (43, 502042), (86, 251021), (283, 76282), (566, 38141), (887, 24338), (1774, 12169)]