289641

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{131}}^1$

素因数の和:212

約数の個数: 16

約数和(自身を含む): 430848

約数和(自身を除く): 141207

約数列:

[1, 3, 11, 33, 67, 131, 201, 393, 737, 1441, 2211, 4323, 8777, 26331, 96547, 289641]

約数ペア:

[(1, 289641), (3, 96547), (11, 26331), (33, 8777), (67, 4323), (131, 2211), (201, 1441), (393, 737)]