20975142

素因数分解:

$2^1\times 3^1\times {\mathrm{43}}^1\times {\mathrm{81299}}^1$

素因数の和:81347

約数の個数: 16

約数和(自身を含む): 42926400

約数和(自身を除く): 21951258

約数列:

[1, 2, 3, 6, 43, 86, 129, 258, 81299, 162598, 243897, 487794, 3495857, 6991714, 10487571, 20975142]

約数ペア:

[(1, 20975142), (2, 10487571), (3, 6991714), (6, 3495857), (43, 487794), (86, 243897), (129, 162598), (258, 81299)]