20958245

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{54437}}^1$

素因数の和:54460

約数の個数: 16

約数和(自身を含む): 31356288

約数和(自身を除く): 10398043

約数列:

[1, 5, 7, 11, 35, 55, 77, 385, 54437, 272185, 381059, 598807, 1905295, 2994035, 4191649, 20958245]

約数ペア:

[(1, 20958245), (5, 4191649), (7, 2994035), (11, 1905295), (35, 598807), (55, 381059), (77, 272185), (385, 54437)]