21374866

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{419}}^1\times {\mathrm{1109}}^1$

素因数の和:1553

約数の個数: 16

約数和(自身を含む): 33566400

約数和(自身を除く): 12191534

約数列:

[1, 2, 23, 46, 419, 838, 1109, 2218, 9637, 19274, 25507, 51014, 464671, 929342, 10687433, 21374866]

約数ペア:

[(1, 21374866), (2, 10687433), (23, 929342), (46, 464671), (419, 51014), (838, 25507), (1109, 19274), (2218, 9637)]