215848605

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{47807}}^1$

素因数の和:47865

約数の個数: 32

約数和(自身を含む): 403881984

約数和(自身を除く): 188033379

約数列:

[1, 3, 5, 7, 15, 21, 35, 43, 105, 129, 215, 301, 645, 903, 1505, 4515, 47807, 143421, 239035, 334649, 717105, 1003947, 1673245, 2055701, 5019735, 6167103, 10278505, 14389907, 30835515, 43169721, 71949535, 215848605]

約数ペア:

[(1, 215848605), (3, 71949535), (5, 43169721), (7, 30835515), (15, 14389907), (21, 10278505), (35, 6167103), (43, 5019735), (105, 2055701), (129, 1673245), (215, 1003947), (301, 717105), (645, 334649), (903, 239035), (1505, 143421), (4515, 47807)]