20974336

素因数分解:

$2^8\times {\mathrm{81931}}^1$

素因数の和:81947

約数の個数: 18

約数和(自身を含む): 41867252

約数和(自身を除く): 20892916

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 81931, 163862, 327724, 655448, 1310896, 2621792, 5243584, 10487168, 20974336]

約数ペア:

[(1, 20974336), (2, 10487168), (4, 5243584), (8, 2621792), (16, 1310896), (32, 655448), (64, 327724), (128, 163862), (256, 81931)]