21121792

素因数分解:

$2^8\times {\mathrm{82507}}^1$

素因数の和:82523

約数の個数: 18

約数和(自身を含む): 42161588

約数和(自身を除く): 21039796

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 82507, 165014, 330028, 660056, 1320112, 2640224, 5280448, 10560896, 21121792]

約数ペア:

[(1, 21121792), (2, 10560896), (4, 5280448), (8, 2640224), (16, 1320112), (32, 660056), (64, 330028), (128, 165014), (256, 82507)]