18981259

素因数分解:

${\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{149}}^1\times {\mathrm{313}}^1$

素因数の和:510

約数の個数: 16

約数和(自身を含む): 21477600

約数和(自身を除く): 2496341

約数列:

[1, 11, 37, 149, 313, 407, 1639, 3443, 5513, 11581, 46637, 60643, 127391, 513007, 1725569, 18981259]

約数ペア:

[(1, 18981259), (11, 1725569), (37, 513007), (149, 127391), (313, 60643), (407, 46637), (1639, 11581), (3443, 5513)]