17988723

素因数分解:

$3^4\times {\mathrm{337}}^1\times {\mathrm{659}}^1$

素因数の和:1008

約数の個数: 20

約数和(自身を含む): 26992680

約数和(自身を除く): 9003957

約数列:

[1, 3, 9, 27, 81, 337, 659, 1011, 1977, 3033, 5931, 9099, 17793, 27297, 53379, 222083, 666249, 1998747, 5996241, 17988723]

約数ペア:

[(1, 17988723), (3, 5996241), (9, 1998747), (27, 666249), (81, 222083), (337, 53379), (659, 27297), (1011, 17793), (1977, 9099), (3033, 5931)]