18549947

素因数分解:

${\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{109}}^1$

素因数の和:207

約数の個数: 24

約数和(自身を含む): 21740400

約数和(自身を除く): 3190453

約数列:

[1, 13, 19, 53, 109, 169, 247, 689, 1007, 1417, 2071, 3211, 5777, 8957, 13091, 18421, 26923, 75101, 109763, 170183, 349999, 976313, 1426919, 18549947]

約数ペア:

[(1, 18549947), (13, 1426919), (19, 976313), (53, 349999), (109, 170183), (169, 109763), (247, 75101), (689, 26923), (1007, 18421), (1417, 13091), (2071, 8957), (3211, 5777)]