16978509

素因数分解:

$3^2\times {\mathrm{421}}^1\times {\mathrm{4481}}^1$

素因数の和:4908

約数の個数: 12

約数和(自身を含む): 24588252

約数和(自身を除く): 7609743

約数列:

[1, 3, 9, 421, 1263, 3789, 4481, 13443, 40329, 1886501, 5659503, 16978509]

約数ペア:

[(1, 16978509), (3, 5659503), (9, 1886501), (421, 40329), (1263, 13443), (3789, 4481)]