21941715

素因数分解:

$3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{31123}}^1$

素因数の和:31178

約数の個数: 16

約数和(自身を含む): 35854848

約数和(自身を除く): 13913133

約数列:

[1, 3, 5, 15, 47, 141, 235, 705, 31123, 93369, 155615, 466845, 1462781, 4388343, 7313905, 21941715]

約数ペア:

[(1, 21941715), (3, 7313905), (5, 4388343), (15, 1462781), (47, 466845), (141, 155615), (235, 93369), (705, 31123)]