81615657

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{139}}^1\times {\mathrm{397}}^1$

素因数の和:585

約数の個数: 32

約数和(自身を含む): 120355200

約数和(自身を除く): 38739543

約数列:

[1, 3, 17, 29, 51, 87, 139, 397, 417, 493, 1191, 1479, 2363, 4031, 6749, 7089, 11513, 12093, 20247, 34539, 55183, 68527, 165549, 195721, 205581, 587163, 938111, 1600307, 2814333, 4800921, 27205219, 81615657]

約数ペア:

[(1, 81615657), (3, 27205219), (17, 4800921), (29, 2814333), (51, 1600307), (87, 938111), (139, 587163), (397, 205581), (417, 195721), (493, 165549), (1191, 68527), (1479, 55183), (2363, 34539), (4031, 20247), (6749, 12093), (7089, 11513)]