20754404

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{137}}^1\times {\mathrm{313}}^1$

素因数の和:476

約数の個数: 36

約数和(自身を含む): 40342092

約数和(自身を除く): 19587688

約数列:

[1, 2, 4, 11, 22, 44, 121, 137, 242, 274, 313, 484, 548, 626, 1252, 1507, 3014, 3443, 6028, 6886, 13772, 16577, 33154, 37873, 42881, 66308, 75746, 85762, 151492, 171524, 471691, 943382, 1886764, 5188601, 10377202, 20754404]

約数ペア:

[(1, 20754404), (2, 10377202), (4, 5188601), (11, 1886764), (22, 943382), (44, 471691), (121, 171524), (137, 151492), (242, 85762), (274, 75746), (313, 66308), (484, 42881), (548, 37873), (626, 33154), (1252, 16577), (1507, 13772), (3014, 6886), (3443, 6028)]