18711259

素因数分解:

$7^1\times {\mathrm{23}}^2\times {\mathrm{31}}^1\times {\mathrm{163}}^1$

素因数の和:247

約数の個数: 24

約数和(自身を含む): 23217152

約数和(自身を除く): 4505893

約数列:

[1, 7, 23, 31, 161, 163, 217, 529, 713, 1141, 3703, 3749, 4991, 5053, 16399, 26243, 35371, 86227, 114793, 116219, 603589, 813533, 2673037, 18711259]

約数ペア:

[(1, 18711259), (7, 2673037), (23, 813533), (31, 603589), (161, 116219), (163, 114793), (217, 86227), (529, 35371), (713, 26243), (1141, 16399), (3703, 5053), (3749, 4991)]