18240747

素因数分解:

$3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{18481}}^1$

素因数の和:18538

約数の個数: 16

約数和(自身を含む): 28388352

約数和(自身を除く): 10147605

約数列:

[1, 3, 7, 21, 47, 141, 329, 987, 18481, 55443, 129367, 388101, 868607, 2605821, 6080249, 18240747]

約数ペア:

[(1, 18240747), (3, 6080249), (7, 2605821), (21, 868607), (47, 388101), (141, 129367), (329, 55443), (987, 18481)]