221603584

素因数分解:

$2^8\times {\mathrm{865639}}^1$

素因数の和:865655

約数の個数: 18

約数和(自身を含む): 442342040

約数和(自身を除く): 220738456

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 865639, 1731278, 3462556, 6925112, 13850224, 27700448, 55400896, 110801792, 221603584]

約数ペア:

[(1, 221603584), (2, 110801792), (4, 55400896), (8, 27700448), (16, 13850224), (32, 6925112), (64, 3462556), (128, 1731278), (256, 865639)]