20852853

素因数分解:

$3^1\times 7^1\times {\mathrm{487}}^1\times {\mathrm{2039}}^1$

素因数の和:2536

約数の個数: 16

約数和(自身を含む): 31856640

約数和(自身を除く): 11003787

約数列:

[1, 3, 7, 21, 487, 1461, 2039, 3409, 6117, 10227, 14273, 42819, 992993, 2978979, 6950951, 20852853]

約数ペア:

[(1, 20852853), (3, 6950951), (7, 2978979), (21, 992993), (487, 42819), (1461, 14273), (2039, 10227), (3409, 6117)]