20921344

素因数分解:

$2^{10}\times {\mathrm{20431}}^1$

素因数の和:20451

約数の個数: 22

約数和(自身を含む): 41824304

約数和(自身を除く): 20902960

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 20431, 40862, 81724, 163448, 326896, 653792, 1307584, 2615168, 5230336, 10460672, 20921344]

約数ペア:

[(1, 20921344), (2, 10460672), (4, 5230336), (8, 2615168), (16, 1307584), (32, 653792), (64, 326896), (128, 163448), (256, 81724), (512, 40862), (1024, 20431)]