20423319

素因数分解:

$3^1\times 7^1\times {\mathrm{487}}^1\times {\mathrm{1997}}^1$

素因数の和:2494

約数の個数: 16

約数和(自身を含む): 31200768

約数和(自身を除く): 10777449

約数列:

[1, 3, 7, 21, 487, 1461, 1997, 3409, 5991, 10227, 13979, 41937, 972539, 2917617, 6807773, 20423319]

約数ペア:

[(1, 20423319), (3, 6807773), (7, 2917617), (21, 972539), (487, 41937), (1461, 13979), (1997, 10227), (3409, 5991)]