398452021

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{691}}^1$

素因数の和:841

約数の個数: 32

約数和(自身を含む): 478310400

約数和(自身を除く): 79858379

約数列:

[1, 11, 19, 31, 89, 209, 341, 589, 691, 979, 1691, 2759, 6479, 7601, 13129, 18601, 21421, 30349, 52421, 61499, 144419, 235631, 406999, 576631, 676489, 1168481, 1906469, 4476989, 12853291, 20971159, 36222911, 398452021]

約数ペア:

[(1, 398452021), (11, 36222911), (19, 20971159), (31, 12853291), (89, 4476989), (209, 1906469), (341, 1168481), (589, 676489), (691, 576631), (979, 406999), (1691, 235631), (2759, 144419), (6479, 61499), (7601, 52421), (13129, 30349), (18601, 21421)]