21243410

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{23869}}^1$

素因数の和:23965

約数の個数: 16

約数和(自身を含む): 38669400

約数和(自身を除く): 17425990

約数列:

[1, 2, 5, 10, 89, 178, 445, 890, 23869, 47738, 119345, 238690, 2124341, 4248682, 10621705, 21243410]

約数ペア:

[(1, 21243410), (2, 10621705), (5, 4248682), (10, 2124341), (89, 238690), (178, 119345), (445, 47738), (890, 23869)]