20656027

素因数分解:

$7^1\times {\mathrm{37}}^1\times {\mathrm{173}}^1\times {\mathrm{461}}^1$

素因数の和:678

約数の個数: 16

約数和(自身を含む): 24437952

約数和(自身を除く): 3781925

約数列:

[1, 7, 37, 173, 259, 461, 1211, 3227, 6401, 17057, 44807, 79753, 119399, 558271, 2950861, 20656027]

約数ペア:

[(1, 20656027), (7, 2950861), (37, 558271), (173, 119399), (259, 79753), (461, 44807), (1211, 17057), (3227, 6401)]