21277456

素因数分解:

$2^4\times {\mathrm{73}}^1\times {\mathrm{18217}}^1$

素因数の和:18298

約数の個数: 20

約数和(自身を含む): 41792092

約数和(自身を除く): 20514636

約数列:

[1, 2, 4, 8, 16, 73, 146, 292, 584, 1168, 18217, 36434, 72868, 145736, 291472, 1329841, 2659682, 5319364, 10638728, 21277456]

約数ペア:

[(1, 21277456), (2, 10638728), (4, 5319364), (8, 2659682), (16, 1329841), (73, 291472), (146, 145736), (292, 72868), (584, 36434), (1168, 18217)]