20912870

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{4637}}^1$

素因数の和:4696

約数の個数: 32

約数和(自身を含む): 42075936

約数和(自身を除く): 21163066

約数列:

[1, 2, 5, 10, 11, 22, 41, 55, 82, 110, 205, 410, 451, 902, 2255, 4510, 4637, 9274, 23185, 46370, 51007, 102014, 190117, 255035, 380234, 510070, 950585, 1901170, 2091287, 4182574, 10456435, 20912870]

約数ペア:

[(1, 20912870), (2, 10456435), (5, 4182574), (10, 2091287), (11, 1901170), (22, 950585), (41, 510070), (55, 380234), (82, 255035), (110, 190117), (205, 102014), (410, 51007), (451, 46370), (902, 23185), (2255, 9274), (4510, 4637)]