21751534

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{91393}}^1$

素因数の和:91419

約数の個数: 16

約数和(自身を含む): 39482208

約数和(自身を除く): 17730674

約数列:

[1, 2, 7, 14, 17, 34, 119, 238, 91393, 182786, 639751, 1279502, 1553681, 3107362, 10875767, 21751534]

約数ペア:

[(1, 21751534), (2, 10875767), (7, 3107362), (14, 1553681), (17, 1279502), (34, 639751), (119, 182786), (238, 91393)]