282681

素因数分解:

$3^2\times 7^2\times {\mathrm{641}}^1$

素因数の和:661

約数の個数: 18

約数和(自身を含む): 475722

約数和(自身を除く): 193041

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 641, 1923, 4487, 5769, 13461, 31409, 40383, 94227, 282681]

約数ペア:

[(1, 282681), (3, 94227), (7, 40383), (9, 31409), (21, 13461), (49, 5769), (63, 4487), (147, 1923), (441, 641)]