21381632

素因数分解:

$2^9\times {\mathrm{41761}}^1$

素因数の和:41779

約数の個数: 20

約数和(自身を含む): 42722526

約数和(自身を除く): 21340894

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 41761, 83522, 167044, 334088, 668176, 1336352, 2672704, 5345408, 10690816, 21381632]

約数ペア:

[(1, 21381632), (2, 10690816), (4, 5345408), (8, 2672704), (16, 1336352), (32, 668176), (64, 334088), (128, 167044), (256, 83522), (512, 41761)]