1390343521

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{376889}}^1$

素因数の和:376944

約数の個数: 16

約数和(自身を含む): 1736709120

約数和(自身を除く): 346365599

約数列:

[1, 7, 17, 31, 119, 217, 527, 3689, 376889, 2638223, 6407113, 11683559, 44849791, 81784913, 198620503, 1390343521]

約数ペア:

[(1, 1390343521), (7, 198620503), (17, 81784913), (31, 44849791), (119, 11683559), (217, 6407113), (527, 2638223), (3689, 376889)]