18858295

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{239}}^1\times {\mathrm{367}}^1$

素因数の和:654

約数の個数: 16

約数和(自身を含む): 23316480

約数和(自身を除く): 4458185

約数列:

[1, 5, 43, 215, 239, 367, 1195, 1835, 10277, 15781, 51385, 78905, 87713, 438565, 3771659, 18858295]

約数ペア:

[(1, 18858295), (5, 3771659), (43, 438565), (215, 87713), (239, 78905), (367, 51385), (1195, 15781), (1835, 10277)]