21084999

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{11503}}^1$

素因数の和:11566

約数の個数: 16

約数和(自身を含む): 30922752

約数和(自身を除く): 9837753

約数列:

[1, 3, 13, 39, 47, 141, 611, 1833, 11503, 34509, 149539, 448617, 540641, 1621923, 7028333, 21084999]

約数ペア:

[(1, 21084999), (3, 7028333), (13, 1621923), (39, 540641), (47, 448617), (141, 149539), (611, 34509), (1833, 11503)]