21092728

素因数分解:

$2^3\times {\mathrm{53}}^1\times {\mathrm{49747}}^1$

素因数の和:49806

約数の個数: 16

約数和(自身を含む): 40295880

約数和(自身を除く): 19203152

約数列:

[1, 2, 4, 8, 53, 106, 212, 424, 49747, 99494, 198988, 397976, 2636591, 5273182, 10546364, 21092728]

約数ペア:

[(1, 21092728), (2, 10546364), (4, 5273182), (8, 2636591), (53, 397976), (106, 198988), (212, 99494), (424, 49747)]