81821981549

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{281}}^1\times {\mathrm{28867}}^1$

素因数の和:29297

約数の個数: 32

約数和(自身を含む): 103159913472

約数和(自身を除く): 21337931923

約数列:

[1, 7, 11, 77, 131, 281, 917, 1441, 1967, 3091, 10087, 21637, 28867, 36811, 202069, 257677, 317537, 404921, 2222759, 2834447, 3781577, 8111627, 26471039, 41597347, 56781389, 89227897, 291181429, 624595279, 1062623137, 7438361959, 11688854507, 81821981549]

約数ペア:

[(1, 81821981549), (7, 11688854507), (11, 7438361959), (77, 1062623137), (131, 624595279), (281, 291181429), (917, 89227897), (1441, 56781389), (1967, 41597347), (3091, 26471039), (10087, 8111627), (21637, 3781577), (28867, 2834447), (36811, 2222759), (202069, 404921), (257677, 317537)]