21451264

素因数分解:

$2^9\times {\mathrm{41897}}^1$

素因数の和:41915

約数の個数: 20

約数和(自身を含む): 42861654

約数和(自身を除く): 21410390

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 41897, 83794, 167588, 335176, 670352, 1340704, 2681408, 5362816, 10725632, 21451264]

約数ペア:

[(1, 21451264), (2, 10725632), (4, 5362816), (8, 2681408), (16, 1340704), (32, 670352), (64, 335176), (128, 167588), (256, 83794), (512, 41897)]