22161904

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{72901}}^1$

素因数の和:72928

約数の個数: 20

約数和(自身を含む): 45199240

約数和(自身を除く): 23037336

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 72901, 145802, 291604, 583208, 1166416, 1385119, 2770238, 5540476, 11080952, 22161904]

約数ペア:

[(1, 22161904), (2, 11080952), (4, 5540476), (8, 2770238), (16, 1385119), (19, 1166416), (38, 583208), (76, 291604), (152, 145802), (304, 72901)]