20972992

素因数分解:

$2^6\times {\mathrm{43}}^1\times {\mathrm{7621}}^1$

素因数の和:7676

約数の個数: 28

約数和(自身を含む): 42591736

約数和(自身を除く): 21618744

約数列:

[1, 2, 4, 8, 16, 32, 43, 64, 86, 172, 344, 688, 1376, 2752, 7621, 15242, 30484, 60968, 121936, 243872, 327703, 487744, 655406, 1310812, 2621624, 5243248, 10486496, 20972992]

約数ペア:

[(1, 20972992), (2, 10486496), (4, 5243248), (8, 2621624), (16, 1310812), (32, 655406), (43, 487744), (64, 327703), (86, 243872), (172, 121936), (344, 60968), (688, 30484), (1376, 15242), (2752, 7621)]