18080853

素因数分解:

$3^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{2617}}^1$

素因数の和:2681

約数の個数: 24

約数和(自身を含む): 28651392

約数和(自身を除く): 10570539

約数列:

[1, 3, 7, 21, 47, 49, 141, 147, 329, 987, 2303, 2617, 6909, 7851, 18319, 54957, 122999, 128233, 368997, 384699, 860993, 2582979, 6026951, 18080853]

約数ペア:

[(1, 18080853), (3, 6026951), (7, 2582979), (21, 860993), (47, 384699), (49, 368997), (141, 128233), (147, 122999), (329, 54957), (987, 18319), (2303, 7851), (2617, 6909)]