19845452

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{131}}^1\times {\mathrm{313}}^1$

素因数の和:470

約数の個数: 36

約数和(自身を含む): 38588088

約数和(自身を除く): 18742636

約数列:

[1, 2, 4, 11, 22, 44, 121, 131, 242, 262, 313, 484, 524, 626, 1252, 1441, 2882, 3443, 5764, 6886, 13772, 15851, 31702, 37873, 41003, 63404, 75746, 82006, 151492, 164012, 451033, 902066, 1804132, 4961363, 9922726, 19845452]

約数ペア:

[(1, 19845452), (2, 9922726), (4, 4961363), (11, 1804132), (22, 902066), (44, 451033), (121, 164012), (131, 151492), (242, 82006), (262, 75746), (313, 63404), (484, 41003), (524, 37873), (626, 31702), (1252, 15851), (1441, 13772), (2882, 6886), (3443, 5764)]