21387248

素因数分解:

$2^4\times {\mathrm{73}}^1\times {\mathrm{18311}}^1$

素因数の和:18392

約数の個数: 20

約数和(自身を含む): 42007728

約数和(自身を除く): 20620480

約数列:

[1, 2, 4, 8, 16, 73, 146, 292, 584, 1168, 18311, 36622, 73244, 146488, 292976, 1336703, 2673406, 5346812, 10693624, 21387248]

約数ペア:

[(1, 21387248), (2, 10693624), (4, 5346812), (8, 2673406), (16, 1336703), (73, 292976), (146, 146488), (292, 73244), (584, 36622), (1168, 18311)]