20951914

素因数分解:

$2^1\times {\mathrm{61}}^1\times {\mathrm{199}}^1\times {\mathrm{863}}^1$

素因数の和:1125

約数の個数: 16

約数和(自身を含む): 32140800

約数和(自身を除く): 11188886

約数列:

[1, 2, 61, 122, 199, 398, 863, 1726, 12139, 24278, 52643, 105286, 171737, 343474, 10475957, 20951914]

約数ペア:

[(1, 20951914), (2, 10475957), (61, 343474), (122, 171737), (199, 105286), (398, 52643), (863, 24278), (1726, 12139)]