18736081

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{439}}^1$

素因数の和:533

約数の個数: 24

約数和(自身を含む): 23876160

約数和(自身を除く): 5140079

約数列:

[1, 7, 13, 49, 67, 91, 439, 469, 637, 871, 3073, 3283, 5707, 6097, 21511, 29413, 39949, 42679, 205891, 279643, 382369, 1441237, 2676583, 18736081]

約数ペア:

[(1, 18736081), (7, 2676583), (13, 1441237), (49, 382369), (67, 279643), (91, 205891), (439, 42679), (469, 39949), (637, 29413), (871, 21511), (3073, 6097), (3283, 5707)]