221566208

素因数分解:

$2^8\times {\mathrm{865493}}^1$

素因数の和:865509

約数の個数: 18

約数和(自身を含む): 442267434

約数和(自身を除く): 220701226

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 865493, 1730986, 3461972, 6923944, 13847888, 27695776, 55391552, 110783104, 221566208]

約数ペア:

[(1, 221566208), (2, 110783104), (4, 55391552), (8, 27695776), (16, 13847888), (32, 6923944), (64, 3461972), (128, 1730986), (256, 865493)]