201821319

素因数分解:

$3^2\times 7^1\times {\mathrm{251}}^1\times {\mathrm{12763}}^1$

素因数の和:13027

約数の個数: 24

約数和(自身を含む): 334518912

約数和(自身を除く): 132697593

約数列:

[1, 3, 7, 9, 21, 63, 251, 753, 1757, 2259, 5271, 12763, 15813, 38289, 89341, 114867, 268023, 804069, 3203513, 9610539, 22424591, 28831617, 67273773, 201821319]

約数ペア:

[(1, 201821319), (3, 67273773), (7, 28831617), (9, 22424591), (21, 9610539), (63, 3203513), (251, 804069), (753, 268023), (1757, 114867), (2259, 89341), (5271, 38289), (12763, 15813)]