21056986

素因数分解:

$2^1\times {\mathrm{191}}^1\times {\mathrm{199}}^1\times {\mathrm{277}}^1$

素因数の和:669

約数の個数: 16

約数和(自身を含む): 32025600

約数和(自身を除く): 10968614

約数列:

[1, 2, 191, 199, 277, 382, 398, 554, 38009, 52907, 55123, 76018, 105814, 110246, 10528493, 21056986]

約数ペア:

[(1, 21056986), (2, 10528493), (191, 110246), (199, 105814), (277, 76018), (382, 55123), (398, 52907), (554, 38009)]