18238955

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{27427}}^1$

素因数の和:27458

約数の個数: 16

約数和(自身を含む): 26330880

約数和(自身を除く): 8091925

約数列:

[1, 5, 7, 19, 35, 95, 133, 665, 27427, 137135, 191989, 521113, 959945, 2605565, 3647791, 18238955]

約数ペア:

[(1, 18238955), (5, 3647791), (7, 2605565), (19, 959945), (35, 521113), (95, 191989), (133, 137135), (665, 27427)]