28389459

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{43609}}^1$

素因数の和:43650

約数の個数: 16

約数和(自身を含む): 44656640

約数和(自身を除く): 16267181

約数列:

[1, 3, 7, 21, 31, 93, 217, 651, 43609, 130827, 305263, 915789, 1351879, 4055637, 9463153, 28389459]

約数ペア:

[(1, 28389459), (3, 9463153), (7, 4055637), (21, 1351879), (31, 915789), (93, 305263), (217, 130827), (651, 43609)]