221570816

素因数分解:

$2^8\times {\mathrm{865511}}^1$

素因数の和:865527

約数の個数: 18

約数和(自身を含む): 442276632

約数和(自身を除く): 220705816

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 865511, 1731022, 3462044, 6924088, 13848176, 27696352, 55392704, 110785408, 221570816]

約数ペア:

[(1, 221570816), (2, 110785408), (4, 55392704), (8, 27696352), (16, 13848176), (32, 6924088), (64, 3462044), (128, 1731022), (256, 865511)]